Marshall's Gold (Audio book)

Audio Book: An American cop on the Amsterdam police force is shocked when his estranged, paranoid brother shows up one night talking about treasure and how killers are tracking him. But the paranoid proves well founded when the brother is killed, leaving Cody, the cop, with a teenage nephew that he never knew existed. Together with the rude teenager, Cody is chased to LA where he talks his gun-toting mom into going with him and the nephew to Cancun to find his brothers killers, and to find whether or not there is a treasure.