![Mister Monday](http://rivendell-books.com/cdn/shop/products/BNCImageAPI_731a1740-c287-4e41-808d-4de73f21737b_{width}x.jpg?v=1659638343)
Bestselling author Garth Nix creates a magical world and an intriguing mystery in this blockbuster new series.
Seven days. Seven keys. Seven virtues. Seven sins. One mysterious house is the doorway to a very mysterious world - where one boy is about to venture and unlock a number of fantastical secrets.
This is another thrilling, triumphantly imaginative series from Garth Nix, the bestselling author of The Seventh Tower, Sabriel, and Lirael.