Creating the perfect cake can feel like an adventure, and there’s something magical about mermaid-themed desserts that draws everyone in. Whether it’s a birthday party, a summer gathering, or just a fun weekend bake-off, I’ve found that mermaid sheet cakes are not only stunning to look at but also delicious to eat. That’s why I decided to pull together these 13 gorgeous mermaid sheet cake inspirations for you.
If you’re a fan of creative baking or simply love desserts that transport you to a fantastical underwater world, this post is for you. You might be planning a special occasion or looking to impress your friends with your baking skills. Either way, these ideas will inspire your next cake project.
In this article, you’ll discover 13 delightful designs, from the shimmering Ocean Wave Wonder to the enchanting Coral Reef Bliss. Each cake comes with fun decorating tips to help you bring these whimsical ideas to life. You’ll find that making a cake that captures the spirit of the sea is not just possible but can be immensely fun. So, grab your baking supplies and get ready to make something that’s as beautiful as it is tasty.
Let’s dive into this ocean of creativity and explore the delightful world of mermaid sheet cakes!
Key Takeaways
– Discover 13 unique mermaid sheet cake designs that are perfect for various occasions.
– Each cake includes specific decorating tips to help you recreate the magical themes at home.
– Find inspiration in designs like Rainbow Seashell Surprise and Lagoon Luscious Layers to wow your guests.
– Use simple ingredients and techniques to make your mermaid cakes both fun and approachable for bakers of all levels.
– Enjoy the process of baking and decorating, turning your kitchen into an underwater fantasy land!
1. Ocean Wave Wonder

Imagine a cake that captures the essence of the sea. The Ocean Wave Wonder cake features beautiful layers of turquoise and deep blue buttercream. This design mimics the waves crashing against the shore. The cake is adorned with white chocolate curls and glittery luster dust, creating a stunning visual. Its gradient colors swirl together, inviting you to take a slice. You can create wave-like textures with a spatula. Adding edible glitter gives it that ocean magic!
Recipe Overview:
– Servings: 12
– Prep Time: 30 minutes
– Cook Time: 25 minutes
– Total Time: 55 minutes
– Calories: Approximately 450 per slice
Nutrition Information:
– Total Fat: 20g
– Carbohydrates: 64g
– Protein: 4g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– 1 cup unsalted butter (softened)
– 4 large eggs
– 1 cup buttermilk
– 1 tablespoon baking powder
– ½ teaspoon sea salt
– Food coloring (blue and green)
Instructions:
1. Preheat your oven to 350°F (175°C). Grease and flour a sheet pan.
2. In a large bowl, cream together butter and sugar until light and fluffy.
3. Add eggs one at a time, mixing well after each addition.
4. In another bowl, combine flour, baking powder, and salt. Gradually add to the butter mixture alternately with buttermilk.
5. Divide the batter into two bowls and color one half with blue and the other with green food coloring.
6. Pour both batters into the prepared pan, swirling with a knife to create a marbled effect.
7. Bake for 25-30 minutes or until a toothpick inserted comes out clean. Cool completely.
8. Frost with ocean-colored buttercream and create wave textures using a spatula.
FAQs:
– Can I make this cake in advance? Yes, it can be made a day ahead and stored in the fridge.
– How do I store leftovers? Keep in an airtight container in the fridge for up to 3 days.
Fun fact: a flawless ocean wave effect on a mermaid sheet cake can be whipped up in 3 simple steps—gradient buttercream, wave texture with a spatula, and a finishing dusting of edible glitter. Your guests will swear it’s powered by tides.
2. Magical Mermaid Tail Delight

Step into a world of wonder with the Magical Mermaid Tail Delight cake. This cake features a vibrant mermaid tail crafted from fondant. It rises majestically from the cake’s surface, adorned with edible glitter that sparkles like the ocean. The surprise inside is equally delightful with colorful cake layers. The beauty of this cake lies in the attention to detail, from the scales of the tail to the moist, flavorful cake beneath.
Recipe Overview:
– Servings: 12
– Prep Time: 40 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 10 minutes
– Calories: Approximately 480 per slice
Nutrition Information:
– Total Fat: 22g
– Carbohydrates: 68g
– Protein: 5g
Ingredients:
– 2 ½ cups all-purpose flour
– 2 cups sugar
– 1 cup butter
– 5 large eggs
– 1 cup milk
– 3 teaspoons baking powder
– 1 teaspoon vanilla extract
– Fondant (various colors)
Instructions:
1. Preheat oven to 350°F (175°C) and prepare a sheet pan.
2. Cream butter and sugar until light and fluffy in a large bowl.
3. Add eggs one at a time, mixing well.
4. Whisk flour, baking powder, and set aside.
5. Add flour mixture and milk alternately to the wet mixture.
6. Stir in vanilla.
7. Pour batter into the prepared pan and bake for 30 minutes. Let it cool completely.
8. While cooling, mold the fondant into a mermaid tail shape. Use luster dust for sparkle.
9. Frost the cooled cake and insert the tail as a centerpiece.
FAQs:
– Can I use store-bought fondant? Yes, it saves time and is easy to work with.
– How do I prevent the fondant from sticking? Dust your surface with cornstarch.
3. Deep-Sea Fantasy

Dive into the mysterious world of the ocean with the Deep-Sea Fantasy cake. With dark blue and green hues, this cake reflects the depths of the sea. Adorned with edible sea creatures like starfish and seashells, it’s both a feast for the eyes and the taste buds. The combination of rich chocolate and vanilla layers makes it a favorite among guests. The chocolate batter, infused with beer, deepens the sweetness while vanilla frosting ties everything in harmony.
Recipe Overview:
– Servings: 14
– Prep Time: 50 minutes
– Cook Time: 35 minutes
– Total Time: 1 hour 25 minutes
– Calories: Approximately 500 per slice
Nutrition Information:
– Total Fat: 24g
– Carbohydrates: 75g
– Protein: 6g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups cocoa powder
– 2 cups sugar
– 1 cup unsalted butter
– 4 large eggs
– 1 cup buttermilk
– 2 tablespoons baking soda
– Food coloring (dark blue and emerald green)
– Edible sea creatures (chocolate or fondant)
Instructions:
1. Preheat your oven to 350°F (175°C). Prepare your sheet pan.
2. In a bowl, cream together butter and sugar until fluffy.
3. Add eggs one at a time, mixing well.
4. In a separate bowl, combine flour, cocoa powder, and baking soda.
5. Gradually add to the butter mixture alternately with buttermilk.
6. Divide batter, color one half blue and the other green.
7. Layer in the pan, creating a marbled effect.
8. Bake for 35 minutes or until a toothpick comes out clean. Cool.
9. Frost with vanilla buttercream tinted in dark colors and decorate with edible sea creatures.
FAQs:
– Can I use a different type of frosting? Yes, cream cheese frosting complements chocolate well.
– How long will the cake last? It can last 4-5 days if stored properly.
Did you know that mastering the Deep-Sea Fantasy look only needs a dark blue fondant base and edible sea creatures? Start with a rich chocolate beer layer, add vanilla frosting, and your mermaid sheet cake will wow guests.
4. Coral Reef Bliss

Bring the vibrant underwater life to your table with the Coral Reef Bliss cake. Bright pinks, oranges, and yellows make this dessert a lively centerpiece. Ocean-themed decorations, like fondant coral and seaweed, add texture and fun. The cake layers are light, fluffy, and bursting with fruity flavors, offering a refreshing taste that pairs perfectly with sweet frosting.
Recipe Overview:
– Servings: 14
– Prep Time: 45 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 15 minutes
– Calories: Approximately 430 per slice
Nutrition Information:
– Total Fat: 18g
– Carbohydrates: 60g
– Protein: 4g
Ingredients:
– 2 ½ cups all-purpose flour
– 2 cups sugar
– 1 cup butter
– 4 large eggs
– 1 cup pineapple juice
– 2 tablespoons baking powder
– Food coloring (pink, orange, yellow)
– Fondant for decorations
Instructions:
1. Preheat your oven to 350°F (175°C) and grease a sheet pan.
2. Cream the butter and sugar in a large bowl until fluffy.
3. Add eggs one by one, mixing well.
4. Combine the flour and baking powder in another bowl.
5. Add the dry ingredients to the cream and mix with pineapple juice.
6. Divide batter, coloring one part pink, one orange, and the other yellow.
7. Pour layers in the prepared pan.
8. Bake for 30 minutes or until set. Cool completely.
9. Frost with buttercream and add fondant coral decorations.
FAQs:
– Can I use other fruit juices? Yes, any fruity juice will work.
– How can I make it more colorful? Layer colored frosting between each cake layer.
5. Pearl Oasis

Looking for an elegant dessert? The Pearl Oasis cake offers a chic touch with its smooth, pearl-like finish in soft pastels. Delicate edible pearls and shimmering silver accents radiate sophistication. This cake is perfect for classy events. The layers feature delightful flavors like vanilla and almond, providing a pleasant contrast to the cake’s beauty.
Recipe Overview:
– Servings: 10
– Prep Time: 30 minutes
– Cook Time: 25 minutes
– Total Time: 55 minutes
– Calories: Approximately 450 per slice
Nutrition Information:
– Total Fat: 19g
– Carbohydrates: 62g
– Protein: 5g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– ½ cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 teaspoons baking powder
– 1 teaspoon almond extract
– Edible pearls and silver luster dust
Instructions:
1. Preheat the oven to 350°F (175°C) and prepare your sheet pan.
2. In a mixing bowl, cream together butter and sugar until fluffy.
3. Add eggs, mixing well.
4. Whisk together the flour, baking powder, and set aside.
5. Slowly add the flour mixture and milk to the butter mixture.
6. Stir in almond extract.
7. Pour into the prepared pan and bake for 25 minutes. Allow to cool.
8. Frost with a smooth buttercream and top with edible pearls.
FAQs:
– How do I make the cake layers moist? Avoid overbaking.
– Can I use different extracts? Yes, vanilla works great too.
6. Underwater Garden

Step into a colorful underwater garden with this delightful cake. It features vivid flowers, green seaweed, and whimsical accents that mimic the ocean floor. Each decoration is crafted from fondant, showcasing colorful blossoms and edible details for a playful touch. The cake layers burst with citrus flavors, balancing the sweet decorations with refreshing tastes.
Recipe Overview:
– Servings: 12
– Prep Time: 50 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 20 minutes
– Calories: Approximately 420 per slice
Nutrition Information:
– Total Fat: 18g
– Carbohydrates: 58g
– Protein: 5g
Ingredients:
– 2 ½ cups all-purpose flour
– 2 cups sugar
– 1 cup unsalted butter
– 4 large eggs
– 1 cup orange juice
– 2 tablespoons baking powder
– Food coloring (various flower colors)
– Fondant for decorations
Instructions:
1. Preheat oven to 350°F (175°C) and prepare a sheet pan.
2. Cream the butter and sugar together in a mixing bowl.
3. Add eggs one by one, mixing well after each.
4. Combine flour and baking powder in another bowl.
5. Mix dry ingredients into the wet mixture alternately with orange juice.
6. Divide mixture to color for decorations.
7. Pour batter into the pan and bake for 30 minutes.
8. Create fondant flowers while the cake cools.
9. Frost the cooled cake and arrange flowers and seaweed decoratively.
FAQs:
– Can I use other juices? Yes, any citrus juice can work well.
– How long can this cake last? It can be kept for up to a week in the fridge.
7. Starry Night Sea

Transport yourself to a serene ocean night with the Starry Night Sea cake. This design features a dark blue base adorned with shimmering gold touches, resembling stars twinkling in the night sky. Finished with sparkly edible glitter, it’s ideal for nighttime celebrations. The rich chocolate layers provide a delightful contrast to the creamy vanilla frosting.
Recipe Overview:
– Servings: 12
– Prep Time: 30 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour
– Calories: Approximately 460 per slice
Nutrition Information:
– Total Fat: 22g
– Carbohydrates: 62g
– Protein: 6g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups cocoa powder
– 2 cups sugar
– 1 cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 tablespoons baking powder
– Edible gold glitter
Instructions:
1. Preheat your oven to 350°F (175°C). Grease a sheet pan.
2. In a large bowl, cream together butter and sugar until fluffy.
3. Add eggs one at a time, mixing well.
4. In another bowl, combine flour, cocoa powder, and baking powder.
5. Gradually add to the butter mixture alternately with milk.
6. Pour batter into the pan and bake for 30 minutes.
7. Let it cool completely before frosting.
8. Frost with vanilla, creating a night sky effect, and sprinkle with gold glitter.
FAQs:
– How do I store the leftover cake? Cover it with plastic wrap and refrigerate.
– Can I make it a day ahead? Yes, it’s even better after resting!
8. Rainbow Seashell Surprise

Get ready for a colorful treat with the Rainbow Seashell Surprise cake! This cake showcases a mesmerizing array of buttercream swirls, adorned with playful seashell decorations. Not only is it beautiful, but it also hides a sweet surprise inside! Each slice reveals colorful layers, making it a delightful addition to any party. The flavor combines vanilla layers with a hint of citrus, striking the perfect balance to the sweetness.
Recipe Overview:
– Servings: 12
– Prep Time: 45 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 15 minutes
– Calories: Approximately 440 per slice
Nutrition Information:
– Total Fat: 20g
– Carbohydrates: 65g
– Protein: 5g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– ½ cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 tablespoons baking powder
– Food coloring (various colors)
– Edible seashell decorations
Instructions:
1. Preheat your oven to 350°F (175°C) and prepare a sheet pan.
2. Cream butter and sugar until fluffy.
3. Add eggs one at a time, mixing well.
4. In a separate bowl, combine flour and baking powder.
5. Gradually add the flour to the butter mixture.
6. Divide batter for coloring. Each section should be a different shade.
7. Bake for 30 minutes or until a toothpick comes out clean.
8. Frost with colored buttercream swirls and add seashell decorations.
FAQs:
– Can I use one color of frosting? Yes, but the rainbow effect is much more fun!
– What if I want a gluten-free version? Substitute with a gluten-free flour blend.
Did you know a mermaid sheet cake can wow a crowd with rainbow buttercream? Rainbow Seashell Surprise hides a citrus-kissed vanilla layer—perfect for 12 servings in about 45 minutes.
9. Siren’s Song Layer Cake

Indulge in the enchanting Siren’s Song Layer Cake, which captures the essence of mermaids with its delicate pastel colors and swirls. Topped with edible flowers and shimmering beads, it’s as beautiful as it is tasty. The real surprise lies in the layers—a perfect blend of flavors that will leave your guests wanting more. The refreshing lemon-flavored cake layers make this dessert a hit at any celebration.
Recipe Overview:
– Servings: 10
– Prep Time: 40 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 10 minutes
– Calories: Approximately 410 per slice
Nutrition Information:
– Total Fat: 18g
– Carbohydrates: 57g
– Protein: 4g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– ½ cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 teaspoons baking powder
– Lemon zest
– Edible flowers for decoration
Instructions:
1. Preheat the oven to 350°F (175°C) and prepare your sheet pan.
2. Cream the butter and sugar until light and fluffy.
3. Add eggs and mix well.
4. In another bowl, combine flour, baking powder, and lemon zest.
5. Gradually add to the butter mixture alternately with milk.
6. Bake for 30 minutes or until a toothpick comes out clean. Cool.
7. Frost with a buttercream tinted in pastels and top with edible flowers.
FAQs:
– What can I substitute for the lemon? Orange zest works nicely too.
– How long will it last? Store it in an airtight container in the fridge for about 4 days.
10. Tide Pool Tiers

Enjoy a taste of the ocean with the Tide Pool Tiers cake, designed to mimic a beautiful tide pool. It features edible stones and shiny candies that look like sea glass. Each tier of the cake can boast different flavors, from classic vanilla to rich chocolate, satisfying every palate. The design combines colors and textures, enhanced by fondant accents that reflect the charm of the ocean.
Recipe Overview:
– Servings: 15
– Prep Time: 1 hour
– Cook Time: 35 minutes
– Total Time: 1 hour 35 minutes
– Calories: Approximately 480 per slice
Nutrition Information:
– Total Fat: 22g
– Carbohydrates: 65g
– Protein: 6g
Ingredients:
– 3 cups all-purpose flour
– 2 ½ cups sugar
– 1 ½ cups unsalted butter
– 6 large eggs
– 2 cups milk
– 4 teaspoons baking powder
– Edible candies (sea glass replica)
Instructions:
1. Preheat your oven to 350°F (175°C) and prepare your cake pans for tiering.
2. Cream together butter and sugar until fluffy.
3. Add eggs one at a time, mixing well.
4. In another bowl, combine flour and baking powder.
5. Gradually add to the mixture with milk.
6. Bake for 35 minutes or until set.
7. Cool completely before stacking tiers.
8. Frost and decorate with edible stones and fondant accents.
FAQs:
– Can I make each tier a different flavor? Absolutely! Mix it up!
– How do I prevent the cake from collapsing? Use dowels for support between tiers.
11. Celestial Sea

Experience the magic of the Celestial Sea cake, inspired by both the ocean and the cosmos. Light blues and purples blend together to create a galaxy-inspired dessert, enhanced by twinkling stars and edible glitter. The flavor profile mirrors this theme with a delicious mix of blueberry and vanilla that everyone will love.
Recipe Overview:
– Servings: 12
– Prep Time: 45 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 15 minutes
– Calories: Approximately 450 per slice
Nutrition Information:
– Total Fat: 18g
– Carbohydrates: 64g
– Protein: 6g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– ½ cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 tablespoons baking powder
– Blueberry puree
– Edible glitter for decoration
Instructions:
1. Preheat your oven to 350°F (175°C) and prepare your sheet pan.
2. Cream butter and sugar until fluffy.
3. Mix in eggs one at a time.
4. Combine flour and baking powder in a bowl.
5. Gradually add flour to the butter mixture.
6. Stir in blueberry puree.
7. Bake for 30 minutes and let cool.
8. Frost with blue and purple buttercream and sprinkle with edible glitter.
FAQs:
– What can I substitute for blueberries? Other berries work well too!
– How do I keep the cake fresh? Store it covered in the refrigerator.
12. Seashell Swirl Cake

Create a slice of ocean beauty with the Seashell Swirl Cake. Its smooth buttercream swirls mimic the soft waves of the sea, leading to lovely seashell decorations made of chocolate or fondant. This cake is not only visually stunning but also offers a delightful combination of chocolate and vanilla flavors. The layers are soft and fluffy, ensuring each bite melts in your mouth.
Recipe Overview:
– Servings: 10
– Prep Time: 30 minutes
– Cook Time: 25 minutes
– Total Time: 55 minutes
– Calories: Approximately 430 per slice
Nutrition Information:
– Total Fat: 20g
– Carbohydrates: 60g
– Protein: 6g
Ingredients:
– 2 cups all-purpose flour
– 1 ½ cups sugar
– ½ cup unsalted butter
– 4 large eggs
– 1 cup milk
– 2 tablespoons baking powder
– Food coloring (blue and cream)
– Chocolate or fondant seashells for decoration
Instructions:
1. Preheat oven to 350°F (175°C) and prepare your sheet pan.
2. Cream together butter and sugar until fluffy and light.
3. Add eggs one by one, mixing well.
4. In another bowl, combine flour, baking powder, and set aside.
5. Add the dry ingredients to the butter mixture alternately with milk.
6. Pour into pans and bake for 25 minutes.
7. Cool completely before frosting with a swirl effect.
8. Top off with chocolate or fondant seashells.
FAQs:
– How should I store the cake? Keep it in an airtight container to maintain freshness.
– Can I use different colors? Absolutely! Customize to match your theme.
13. Lagoon Luscious Layers

End your cake journey with the Lagoon Luscious Layers cake, a stunning multi-layered treat that captures the tranquil colors of a lagoon. This design features shades of green, blue, and white, resembling serene waters. Each layer offers a different flavor, with hints of coconut and pineapple that delight the palate.
Recipe Overview:
– Servings: 12
– Prep Time: 50 minutes
– Cook Time: 30 minutes
– Total Time: 1 hour 20 minutes
– Calories: Approximately 460 per slice
Nutrition Information:
– Total Fat: 22g
– Carbohydrates: 62g
– Protein: 5g
Ingredients:
– 2 ½ cups all-purpose flour
– 2 cups sugar
– 1 cup unsalted butter
– 4 large eggs
– 1 cup coconut milk
– 2 tablespoons baking powder
– Food coloring (green, blue, white)
– Coconut flakes for decoration
Instructions:
1. Preheat oven to 350°F (175°C) and prepare a sheet pan.
2. Cream butter and sugar until fluffy in a large bowl.
3. Add eggs one by one, mixing until well combined.
4. In another bowl, combine flour and baking powder.
5. Gradually add the flour mixture alternately with coconut milk.
6. Divide batter and color each portion.
7. Pour layers into prepared pan and bake for 30 minutes.
8. Cool completely and frost with creamy coconut frosting.
9. Top with coconut flakes for an added tropical vibe.
FAQs:
– Can I substitute coconut milk? Whole milk works too.
– How long does it last? Kept in the fridge, it can last up to 5 days.
Conclusion

Creating a mermaid sheet cake is a delightful way to bring a touch of ocean magic to any celebration. With every unique design, you can showcase your creativity and impress your guests with both beauty and flavor. From shimmering waves to vibrant coral reefs, each cake tells a story that will leave lasting memories.
So, pick your favorite design, gather your ingredients, and let the magic happen in your kitchen. Share your creations and explore the endless possibilities of mermaid-themed desserts!
Frequently Asked Questions
What Ingredients Should I Use for a Mermaid Sheet Cake?
Creating a stunning mermaid sheet cake starts with the right ingredients! Use a moist vanilla or chocolate cake base, and consider adding flavors like coconut or almond for that tropical vibe.
For the frosting, a buttercream is perfect, as it can be easily tinted with vibrant colors like teal, purple, and pink. Don’t forget to incorporate edible glitter or shimmer to give your cake that magical finish!
What Are Some Fun Decorating Tips for a Mermaid Sheet Cake?
When decorating your mermaid sheet cake, let your creativity shine! Use different shades of blue and green to mimic the ocean, and consider adding fondant or chocolate seashells for a fun touch.
Pipe waves with your frosting and sprinkle edible pearls for that extra sparkle. You can even top your cake with a mermaid figurine to really bring your theme to life!
How Can I Make My Mermaid Sheet Cake More Interactive for Guests?
Make your mermaid sheet cake a hit at your party by incorporating interactive elements! Consider adding a ‘treasure hunt’ around the cake with candy seashells or chocolate coins hidden within.
You could also set up a cake decorating station where guests can add their own toppings or edible decorations, making it a fun and engaging experience for everyone!
Can I Make a Mermaid Sheet Cake Ahead of Time?
Absolutely! You can make your mermaid sheet cake ahead of time. Bake the cake a day or two in advance and store it in an airtight container to keep it fresh.
Frosting can also be made ahead and stored in the fridge. Just allow both the cake and frosting to come to room temperature before decorating to ensure a smooth finish!
What Themes or Occasions Are Perfect for a Mermaid Sheet Cake?
A mermaid sheet cake is perfect for a variety of occasions! Think birthday parties, baby showers, or even summer beach-themed events. It’s also a fantastic choice for any little one’s mermaid-themed party or sleepover.
The vibrant colors and fun decorations make it a show-stopping dessert that will delight guests of all ages!
Related Topics
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cake decorating
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themed desserts
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