Lucy finds her little sister Mia an annoying little monster, but one day when she yells "Go away" Mia disappears into a world of monsters, who make Mia their queen--and it is up to Lucy to find her own inner monster and retrieve her sister.
Illustrations and simple, rhyming text observe a wide variety of boats that spend all day, from early morning until dreamy night, on a bay, in the ocean, or under the sea.