Bristol, 1205: A Templar Knight returns from the crusades seeking forgiveness. He failed to retrieve a sacred manuscript from the Library of Constantinople. The Present: Archaeologist, Dr Sasha Blake is being hunted by an unseen enemy. Her only chance is to locate an ancient manuscript and trade it for her life. Tom Sheridan is at her side, but is he really being hunted or is he one of the hunters? They are offered shelter and assistance by a wealthy businessman, Gabriel Fletcher. Can Gabriel be trusted or is he playing games with her?