Rewinder

You will never read Denny Younger's name in any history book, will never know what he's done. But even if you did, you'd never believe it. The world as you know it wouldn't be the same without him. Denny was born into one of the lowest rungs of society, but his bleak fortunes abruptly change when the mysterious Upjohn Institute recruits him to be a Rewinder, a verifier of personal histories. The job at first sounds like it involves researching old books and records, but Denny soon learns it's far from it.

With the whole of human history altered, Denny Younger may be the last rewinder in existence - and the last person on Earth with a chaser unit capable of time travel. While caring for his ailing sister, Denny must discover a way to recharge his device before he's left with no defense against a past that wants him dead. Before long, Denny notices a mysterious stranger following him - keeping tabs on Denny, his family, and his friends. Is Denny just paranoid?

There is nothing Denny wants more than to repair the damage former rewinder Lidia has done to history. Her manipulations have thrown the time line he knows into chaos, and now he's locked away in an unfamiliar world, without the device that would allow him to fix what has been destroyed. Will Denny be able to bring back the life he knew and the people he loves, or will he be trapped in this violent time line forever?