There are 7 books in the The Keys to the Kingdom series. The newest book is Lord Sunday which came out in 2010.

This is a great time to reprint the spellbinding start to The Keys to the Kingdom!

Best-selling author Garth Nix creates a magical world and an intriguing mystery in this new blockbuster series.Seven days. Seven keys. Seven virtues. Seven sins. One mysterious house is the doorway to a very mysterious…
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2
Grim Tuesday

Book cover of Grim Tuesday
The second incredible book in The Keys to the Kingdom, now in hardcover

Arthur doesn't think he will ever have to return to the strange house that nearly killed him on Monday -- the house that contains an entire world. But Tuesday brings new challenges -- in the form of…

3
Drowned Wednesday

Book cover of Drowned Wednesday
Out-of-this-world magical adventure series for teens from the award-winning, New York Times bestselling author of Sabriel and the Old Kingdom series.

Seven days. Seven keys. One very unlikely hero.

Wednesday has rolled around, and Arthur Penhaligon has an invitation to return to the house that he can't refuse. Drowned Wednesday…

4
Sir Thursday

Book cover of Sir Thursday

Arthur Penhaligon is stuck in the Lower House because someone - or something - has assumed his identity and is taking over his life. But before Arthur can take action, he is drafted by Sir Thursday and forced to join the Glorious Army of the Architect.

The Army has its…

5
Lady Friday

Book cover of Lady Friday
Out-of-this-world magical adventure series for teens from the award-winning, New York Times bestselling author of Sabriel and the Old Kingdom series.

Seven days. Seven keys. One very unlikely hero.

Four of the seven trustees have been defeated and their Keys taken, but for Arthur Penhaligon, the week is still getting…

6
Superior Saturday

Book cover of Superior Saturday
Out-of-this-world magical adventure series for teens from the award-winning, New York Times bestselling author of Sabriel and the Old Kingdom series.

Seven days. Seven keys. One very unlikely hero.

Arthur Penhaglion has wrested five of the Keys from the Trustees of the Will, but gaining the Sixth Key poses a…

7
Lord Sunday

Book cover of Lord Sunday
Out-of-this-world magical adventure series for teens from the award-winning, New York Times bestselling author of Sabriel and the Old Kingdom series.

Seven days. Seven keys. One very unlikely hero.

The house is falling apart, and when it is destroyed, all existence will be destroyed with it. Arthur Penhaligon and his…