Son of the Morning - Linda Howard

A scholar specilizing in ancient manuscripts, Grace St. John never imagined that a cache of fragile, old documents she discovered was the missing link to a lost Celtic treasure . But soon as she discovered the intriguing legend of the Knights of the Templar -long fabled to hold the key to unlimited power -Grace becomes the target of a ruthless killer bent on abusing the coveted force. Determined to stop him, Grace needs the help of a celebrated warrior bound by duty to uphold the Templar's secret for all eternity. But to find him -and to save herself -she must go back in time.