Kid Vs. Squid

When a mysterious girl shows up at his uncle's seaside Museum of Curiosities, Thatcher's quiet summer job turns into an adventure. The girl is a princess of the lost city of Atlantis, whose people have been cursed to float at sea all winter and work the midway games and food stands on the boardwalk in the summer. Can Thatcher save them from a life of selling cotton candy? Or will he, too, succumb to the witch's curse?