Following the sudden death of his father, high-school student Harry Keller finds his mind full of strange visions of the past and future. Soon he can actually mentally leave "real" time and enter a place he dubs "ATime," where other people's lives unwind around him in twisting trails that he can see and touch—and change!

Unfortunately, A-Time is also inhabited by monstrous creatures called Quirks—deadly events trying to force their way into life trails so they can happen—as well as other humans who seek to distort the future for their own gain. In the first two books of this mind-bending new science fiction series, Harry begins to discover his ultimate purpose in A-Time.