After accidentally sucking Benjamin Franklin into twenty-first-century New Jersey with his Anytime Anywhere machine, thirteen-year-old Qwerty Stevens and his best friend almost wind up stuck in Philadelphia on July 4, 1776 when they try to send him back.

The Edison Mystery

by Dan Gutman

Published 1 July 2001
Thirteen-year-old Robert "Qwerty" Stevens uses the time machine he finds in his back yard to visit Thomas Edison's workshop in 1879, and there helps develop the electric light bulb, but then needs his sister's help to return to his own time.