When their house mysteriously explodes and they are sent to live with an unknown relative named Grandma X, twelve-year-old twins Jaide and Jack Shield learn that they are troubletwisters, young Wardens just coming into their powers, who must protect humanity from The Evil trying to break into Earth’s dimension.
- ISBN: 9780545258975
- Authors: Nix, Garth; Williams, Sean
- Published: 2011 , Scholastic Inc.
- Themes: Brother and sister, Evil, Grandmother, Magic, Rescues, twin
- Descriptors: Australia, Fantasy, Intermediate (ages 9-14), Young Adult (ages 14-18)
- No. of pages: 293