Mallins Wood is home to the last surviving gorgon, and Col's mother, the gorgon's supernatural Companion, is determined to save it from encroaching development--even to the point of endangering Col and his best friend Connie, the most powerful Companion alive.

Connie and Col band together to save the world for all creatures--including the mythical ones of which few humans are aware--from the shape-shifter Kullervo's army and, along the way, Connie finds herself transformed in an amazing way.