by Molly Cochran, Warren Murphy, Molly Cochran and Warren Murphy
Hal was a fantastic FBI agent, but after a child died during one of his cases, he left the bureau and became an alcoholic mess. Arthur was just a bright but ordinary boy until he discovered a strange metallic cup. A serious of coincidences and the dastardly deeds of the immortal Saladin bring them...
This is the book that first got me into Arthurian legend. It has a good plot, very nice characterization, and introduces an interesting twist on the King Arthur story. I also enjoyed the way that the present-day plot was interspersed with flashbacks to the Grail's history and the history of King Art...