Atticus Claw Goes Ashore

Atticus is on beach tidying duty with the kittens when he finds a message in a bottle from Fishhook Frank. Fishhook is marooned on a desert island, but he promises Atticus treasure in exchange for his rescue! The treasure in question is the Casket of Desires, which contains a sleeping mermaid who has the power to grant any wish. But it is hidden in the deepest darkest part of the ocean, protecte...