Stilton, Geronimo, author.
308 pages : color illustrations ; 21 cm
Translation of: Il segreto delle fate degli oceani. Milano : Piemme, copyright 2015.
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.