Island of the Unknowns
A MysteryBook - 2011
When people start vanishing from a godforsaken trailer park next to the Folsom Energy Plant, two eleven-year-olds investigate using mathematical clues that were hastily planted by their friend Mrs. Clarke before she disappeared.
Publisher: New York : Amulet Books, 2011
Characteristics: 265 p. : ill. ; 21 cm