Jordan, a curious sixth grader, investigates the mysterious Room 13 at Willow Creek Middle School, where a teacher named Mr. Thorne vanished years ago. Inside, he discovers a grandfather clock that traps not only shadows but people and manipulates time. After freeing a shadowy figure-possibly Mr. Thorne-Jordan and his friend Maya are drawn into a looping nightmare of time travel, rituals, and ancient guardians. As they uncover secrets about chronomancy and the Architect who built the clocks, they attempt to reset corrupted timelines using the Thorne Protocol. But time is not easily tamed. Jordan escapes, changed and marked as a Timekeeper, while Maya gets trapped as well. Will they be able to reset time and find each other?