The Last Mayan: An Alan Graham Mystery (Alan Graham Mysteries)

Plot

Contract archaeologist Alan Graham came to the Yucatan to join his lady Pepper on a dig -- and may now be involved in the greatest discovery in centuries...or the greatest hoax. New evidence suggests there were Old World visitors in Central America long before the conquistadores. But when the search for proof leaves two people dead, Graham realizes that the past isn't all that's waiting in the Mexican rain forest. A killer is there as well. And unless Alan unmasks the murderer, the entire expedition could vanish forever into the mists of time, along with the truth.