Timekeeper by Tara Sim

An alternate Victorian world controlled by clock towers, where a damaged clock can fracture time--and a destroyed one can stop it completely. A prodigy mechanic who can repair not only clockwork, but time itself, determined to rescue his father from a Stopped town. A series of mysterious bombings that could jeopardize all of England. A boy who would give anything to relive his past, and one who would give anything to live at all. A romance that will shake the very foundations of time. The first book in a dazzling new steampunk-fantasy trilogy, Timekeeper introduces a magical world of mythology and innovation that readers will never want to leave.