Series
Summary
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... Full description
Series: Secrets of the seven
The Eureka key (Volume 1.)
The Eagle's Quill (Volume 2.)
The ring of honor (Volume 3.)