Keep er's Watch By Cynthia Roberts

http://www.smashwords.com/books/view/335075

Det. Beth Tyler must decipher riddles left by her deceased father & protect his latest archeological find. She becomes a target of not only ruthless privateers, but also roguishly, handsome FBI agent, Jeremy Steele. Despite her attempts to thwart his joining her, Beth relents. An attraction develops as their perilous journey unfolds & they unveil a discovery that changes history forever.