When brilliant physicist Dr. Dan Duffield vanishes from his secret laboratory without a trace, seventeen-year-old history enthusiast Duff Duffield refuses to believe his father simply disappeared. Joined by his lifelong friend Marcy Bell, Duff begins searching for answers inside an abandoned warehouse that hides an impossible scientific experiment—and a mysterious carved wooden token that should not exist. As clues point toward the influential Riverview Club, Duff uncovers a mystery that stretches far beyond a missing person. Unknown to everyone, Dan's final experiment opened a doorway across nineteen centuries, linking the modern world to a Germanic tribal camp on the edge of the Roman frontier. The Time Keeper launches an original science-fiction adventure that blends mystery, history, and coming-of-age drama into a story about friendship, courage, and the consequences of curiosity. It is the beginning of a journey that will span worlds, challenge history itself, and forge unlikely alliances across time.

Gangs Science Time Travel Teenagers (13-18)