Soldier of Ages: Tettenhall

Peter Kendrick awakens in the Junction with his memory erased; he has volunteered to join the Time Guardians, alien beings who monitor events on the Timeline of human existence to help maintain balance in the universe. As chaos increases, the stability of the Timeline is threatened, and the Guardians train elite soldiers to fight in battles across history to ensure their outcomes and preserve order.
Peter's first mission hurtles him back to 10th Century England where he joins the Anglo Sax...