Plunder of the Sun

The insurance adjuster Al Colby is interrogated by the Mexican authorities about the trail of dead bodies behind him. When the personnel from the American Consulate arrive to talk to Colby, he tells them that his journey had begun in Havana, Cuba, where he was short of money. Colby is contacted by Thomas Berrien, a crooked collector of antiquities who offers one thousand dollars to him to travel by ship to Oaxaca, Mexico, smuggling a small package in with him. During the voyage, Thomas dies in his cabin, and Colby opens the package and finds three parchments and one medal of stone. When he is contacted by Thomas' rival, the archaeologist Jefferson, he discovers that the parchments contain information about a hidden treasure in the Zapotecan ruins of Mitla.