Reclaiming the One

At nineteen, Cain Wilson met his true mate, Selena.
 But their short-lived romance was doomed from the start for one simple reason—she belonged to someone else.
 At twenty, he killed his father and handed control of the pack to his more capable, older brother, Theo. 
At twenty-five, unable to watch his mate with another, he left the pack and became a lone wolf. 
Now at twenty-seven, family troubles have brought him back to Mount Roxby, and unbeknown to him, his true mate. Will he be able to put the past behind him and reclaim the one? Or has time built an impenetrable wall around both their hearts?