The Magician's Horses - Brian Bennett - Bog

A time travel adventure like no other. Dave is offered a small fortune to help two adventurous scientists disappear into the future.
But being left behind by the closest he has to family isn't the bargain the orphaned teenager expects. When Dave follows his mentors, calibration issues separate him from Doc and Sally by untold years. Alone once again, he struggles to fit into a utopian world that fears his connections to the past.
Facing an unjust persecution, he must find Doc and Sally or be forced to flee deeper into the future.