"The weirder this mystery gets," said Grace, "the more determined I am to solve it ..."

Newly qualified warden Grace Griffin couldn't be more excited about using the Griffin map to teleport through Moreland fighting crime. But her first mission is proving to be a bit of a puzzle.

A series of bizarre thefts have been happening all over the country, and the only link between them is the sighting of a peculiar bird at the scene of each robbery.

When the clues finally lead to a ramshackle castle on a lonely island, Grace might find more than just a thief ...