'Warden Griffin at your service. Can I ask if you've seen a monster in the area ...?'

Grace's family are wardens of the Griffin Map, using its teleport technology to fight crimes across Moreland. Although Grace is still too young, she longs to go on missions herself. After all, if her brother, Bren, can do it, why can't she?

So when Grace finds herself alone with the map as a distress call comes in, she jumps at the change to prove she's up to the task. But the map transports Grace to a remote village where nothing is quite as it seems ... Has she taken on more than she can handle?