To work off her debt, Lampie is banished to the Admiral's lonely house, where a monster is rumored to live. The terrors inside the house aren't quite what she thought they would be--they are even stranger. After Lampie saves the life of the neglected, deformed son of the admiral, a boy she calls Fish, they form a close bond. Soon they are pulled into a fairytale adventure swimming with mermaids, pirates, and misfits. Lampie will discover the courage to fight for friendship, knowledge, and the freedom to be different.