The Forever Quest (The Forever, #4)

Life is the cure for happiness. Someone always wants what you have. If you have a lot to lose, you better watch your back very closely. Jon Ryan has lived two centuries. He has save humanity, bested hostile alien races, and helped create an ideal society on a new world. He should be able to rest for the first time in centuries, and enjoy the fruits of his labor. But, he's never been that lucky.
There's an alternate time-line version of Jon out there somewhere, one who suffered the loss of his species. Jon must find his duplicate who's lost in time and space. He must ease his pain. Along the way, an immensely evil man allies with an unbelievably vicious race to end the humanity once and for all. Jon must also decide if he believes in magic. There is truly no rest for the weary.
As the chances of failure skyrocket, can one good man stand against unbeatable odds one more time?