Description "The weirder this mystery gets," said Grace, "the more determined I am to solve it . . ." Newly qualified warden Grace Griffin is excited to be using the amazing teleport technology of the Griffin map to travel throughout Moreland fighting crime. But her first mission, investigating a series of petty thefts, is proving to be a bit of a puzzle. Who would steal a jar of jam, or a spanner, or a tin of machine oil? And why do all the reports mention the sighting of a bird at the scene of the robbery? When the clues finally lead to a ramshackle castle on a lonely island, Grace might find more than just a thief . . .