The Treasure of the Sea by Thea Stilton
A Geronimo Stilton Adventure (Thea Stilton: Special Edition #5)

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Thea Stilton and the Thea Sisters are needed to help Aquamarina, the magical land of the ocean! The enchanted Music of the Sea has stopped playing, and no one knows why. If it doesn't return soon, the realm will perish!
The mouselets and their friend Will Mystery travel to the underwater world to find the magical music. On their mission, they swim through dangerous waters, encounter strange and fantastical creatures, and even reveal an ancient mystery. It's a mousetastic aquatic adventure!

About Thea Stilton

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Thea Stilton is a special correspondent for The Rodent’s Gazette, Mouse Island’s most famouse newspaper. A graduate of Mouseford Academy, Ms. Stilton loves traveling and adventures. Find out more at
Published September 27, 2016 by Scholastic Paperbacks. 320 pages
Genres: Science Fiction & Fantasy, Action & Adventure, Children's Books. Fiction