The Thea Sisters investigate a mystery involving a blue-skinned boy found unconscious on the beach by Paulina. At the beach by Mouseford Academy, one of the Thea Sisters discovers a boy with blue skin washed up on the shore. He speaks an unfamiliar language, so they call Thea Stilton to help figure out how to communicate with him. Special Edition #1.
General Note: Accelerated Reader MG 4.7 4 4 154729."Based on an original idea by Elisabetta Dami"--T.p. verso.Translation of: Il principe di Atlantide.