Tal has lived his whole life in darkness. He has never left his home, a mysterious castle of seven towers. He does not see the threat that will tear apart his family and his world. But Tal cannot stay safe forever. When danger strikes, he must desperately climb the Red Tower to steal a Sunstone. He reaches the top... ...and then he falls into a strange and unknown world of warriors, ice ships, and hidden magic. There Tal makes an enemy who will save his life and holds the key to his future.

Bestselling author Garth Nix's amazing Seventh Tower series is back—now with a great new look! The Dark World is in danger, for the Veil is vulnerable. War is soon to come. On one side are Tal and the Underfolk rebels, struggling valiantly for freedom. On another side are Milla and the Icecarls, preparing to assualt the Castle in order to preserve their world. And on a third side lies the most sinister force of all—a force of evil that has only now chosen to reveal itself—a force of such power that it could unleash the ultimate destruction.

Bestselling author Garth Nix's amazing Seventh Tower series is back—now with a great new look! The Underfolk are restless. For a long time, they have kept quiet, occupying the lower levels of the Castle. But now they are going to be heard... Tal and Milla are no longer alone in their quest for the truth about their world. They have been joined by Crow, a rebel Underfolk, and his band of conspirators. They know many secrets about the Castle—and are on the verge of uncovering the greatest secret of all. The darkness is growing deeper. The shadows are growing stronger. And Tal and Milla are in greater danger than ever before.