Inca Gold

From the back of the book.

After a long night of researching, your computer programs locates a straight line-this could be the first clue in locating the ancient Lost City of the Incas. An eccentric billionaire, a ruthless archaeologist, strange twin tricksters in the middle of the jungle, and Pizarro's mythic Lost City of Gold form a potent and treacherous mix. You will need all your skills and wits to outsmart the adventurers who want to get the lost Incan treasures before you. If you succeed in finding the secrets of the jungles of Peru, will you leave them there or take them with you?