Seven days Seven keys Seven virtues & seven sins The moment Arthur meets sinister Mister Monday the world turns inside out The next seven days will bring seven fearful challenges & a billion grisly ways to die As his world is attacked by a plague of hellish creatures Arthur retreats into a mysterious house a house that only he can see Inside unlikely hero Arthur must unravel the secrets of the Seven Keys battling monsters & treacherous Denizens in a bid to save his world From bestselling author Garth Nix this surreal & stunning fantasy series will hold you mesmerised Titles included in this set are 1 Mister Monday 2 Grim Tuesday 3 Drowned Wednesday 4 Sir Thursday 5 Lady Friday 6 Superior Saturday 7 Lord Sunday