Futureimperfect — Stefan Petrucha

In this thrilling and surreal finale to the TimeTripper series, Harry Keller finds himself stuck back at Windfree mental hospital. All the progress he thought he'd made has crumbled and Harry is too devastated to pick up the pieces. He might not have a choice, though. Harry must confront the enemy that drove him to this end, before more damage is done.

When Harry is thrust back into A-Time, he discovers new secrets about the bizarre, time-bending world that go beyond what he ever could have imagined, and even stranger secrets about our own reality.