Hooray! Hooray! It's Mermaid Day! From the best-selling creators of Unicorn Day comes a mer-tastic celebration as all sorts of sea creatures celebrate Mermaid Day! On Mermaid Day, the mer-queen throws a fin-tastic party! She decorates her underwater castle and creatures of all kinds swim inside to celebrate together. Dolphins dance, narwhals play ring toss, and as night falls, the guests prepare to say goodnight to a mer-mazing day. But are all welcome to celebrate under the sea? This heartwarming and inclusive story is the perfect companion to the bestselling Unicorn Day! Hooray Hooray! It's Mermaid Day! Shake your tail fins! Splash and play! The Perfect gift if you're looking for: *Mermaid books for boys and girls ages 4-10 *A fun-filled bedtime story *Colorful, beautiful animal stories *Children's books about mermaids *Mermaid gifts for little girls and boys