- ISBN: 9780545576307 (electronic)
- ISBN: 054557630X (electronic)
- Physical Description: 1 online resource (266 pages) : illustrations.
- Publisher: New York, NY : Scholastic, 2013
|Summary, etc.:|| Thirteen-year-old Dan Cahill and his older sister, Amy, are the latest guardians of the Clues -- thirty-nine ingredients in a serum that transforms whomever takes it into the most powerful person on earth. They think they've done everything right, but a tiny mistake leads to catastrophe. The serum is missing and Dan and Amy have to get it back and stop who stole it ... before it's game over.
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