Secrets of the Seven. The Eureka KeyBook - 2016
Sam (a puzzle master) and Martina (a history whiz) become involved in a dangerous quest to find seven keys left behind by Benjamin Franklin and a secret society of descendants, which, when gathered together, unlock a powerful weapon, so the middle schoolers must solve the puzzles, find the artifacts before the bad guy does, and save the nation.
Publisher: New York : Bloomsbury, c2016
Branch Call Number: jFIC Thom
Characteristics: 227 pages ; 22 cm
Alternative Title: Eureka key