What is the Department of Dead Letters? And what is hidden within the restricted area of Room 101? Suddenly orphaned and homeless, Zeth finds his once-normal life taking a bizarre and unexpected turn for the worst when he becomes an innocent target of the world's most ruthless Chronocriminal, a madman named Mortimer, responsible for murdering Zeth's parents and burning down his home, Snowdon Manor. For his safety and protection, Zeth is placed under the guardianship of the enigmatic Commander Snow and taken to the Department of Dead Letters, a place he never even knew existed, but is at the centre of Mortimer's dangerous obsessions and Commander Snow's many secrets. For it is here, within the prohibited Room 101, that Zeth comes to understand that not only is his future uncertain, but also his past...