While volcanoes spew golden lava around the world, djinn twins John and Philippa, with their parents, Uncle Nimrod, and Groanin, face evil more powerful than ever before when they try to stop the wicked djinn trying to rob the grave of Genghis Khan.
- ISBN: 9780545126601
- Author: Kerr, P. B.
- Published: 2011 , Scholastic Inc.
- Themes: Genies, Magic, Siblings, Twins, volcano
- Descriptors: England (UK), Europe, Fantasy, Intermediate (ages 9-14), Mongolia
- No. of pages: 448