Alexander Mathanach is not like other mortals. He is one of a chosen few - an assembly of extraordinary men responsible for the safekeeping of an ancient celestial power. Yet he is not immune to the anguish that can plague a mortal man's existence. It is the year 1247. In the aftermath of a tragedy, a young woman lies dying in Alexander's arms. In her final moments, she confesses to a shocking secret and compels Alexander to make a promise - a vow that will change his life. Three days later, he takes a baby girl from an abbey in southern England and flees north, seeking refuge in the rugged...