Are you a troubletwister? Jaide and Jack Shield's lives are changing in a very, very strange way. The weather is turning against them. Magical disasters occur when they're around. And a mysterious explosion has just destroyed their house...from the inside. Without knowing why, the twins are stolen away to live with Grandma X—a relative they've never, ever met. At Grandma X's house, things are even stranger. Weather vanes point in the opposite direction of the wind. Doors appear and disappear. Cats talk. Jaide and Jack don't know the reason behind all this strangeness. They don't know that they're troubletwisters, and that they must defend the world against a dark, evil force. The time has come for them to discover the truth—and the powers that come with the truth. Are they ready?

The spectacular new middle-grade fantasy series from bestselling authors Garth Nix and Sean Williams.Are you a troubletwister? Jaide and Jack Shield have a secret. When they're unexpectedly sent to live with their mysterious Grandma X, they're thrust into a world where cats talk and strange weather comes out of nowhere. There they learn that they're troubletwisters, with powers they must use to stop the Evil from taking over our world. Before, they'd defeated the Evil through luck and intuition. Now though, Jaide and Jack will have to learn how to use their powers, and how to keep on their toes when evil forces return.

The third thrilling installment of the new middle-grade fantasy series from bestselling authors Garth Nix and Sean Williams. Just as Jaide and Jack Shield are settling into their crazy new lives in Portland, The Evil threatens another Ward, and the twins will need to put their growing powers to the test!

The grand finale of the thrilling middle-grade fantasy series from bestselling authors Garth Nix and Sean Williams. Just as twins Jaide and Jack Shield think they've settled into their crazy new lives as troubletwisters, The Evil threatens again, and the duo will need to put their growing powers to the test!