D. R. Evans
This book can be downloaded and read in Apple Books on your Mac or iOS device.
Four hundred years in the future, two superpowers have carved up the galaxy and share an uneasy truce.
But the Union launches a clandestine mission to kill the Empire's leader, setting in motion a train of events that leads to a revelation that will forever change the balance of power. In response, the Empire unleashes the ultimate weapon, propelling a Union spy into a timestream populated by only one other person: a young physicist from a backward planet he calls Earth, who is desperate to find a way to return to normal time.