The Inca Prophecy: Library Edition

An eerie clue to the Inca Prophecy lies hidden in a tomb near the ancient city of Machu Picchu. The prophecy itself is concealed deep in the Amazon jungle, amongst the ruins of Paititi, the Lost City of the Inca. Disaffected CIA agent Curtis O'Connor and Guatemalan archaeologist Dr. Aleta Weizman are convinced a mysterious crystal skull, discovered near the Inca Trail, will lead them to it.

What is hidden in Paititi that would attract the attention of both the CIA and the Vatican's espionage service? All O'Connor can be certain of is that both he and Weizman are now in mortal danger.