The treasure of the sea /
Geronimo Stilton, Thea Stilton ; [Illustrations by Chiara Balleello and Barbara Pellizzari (design); Alessandro Muscillo].
- First [American] edition.
- pages cm
The underwater kingdom of Aquamarina is in trouble because the enchanted Music of the Sea has stopped playing--so Thea and the Thea Sisters, together with their friend Will Mystery set out on a dangerous mission to find the Sea Violin which will restore color and life to the Kingdom.