How do you yo get the journal page from monkey in Indiana Jones 2?

In Indiana Jones and the Fate of Atlantis, you can acquire the first of two journal pages from Monkey if you have obtained the map of the Catacombs by talking to Sophia Hagen. While in Peru talking to Monkey, give him that map along with 5000 Pesetas after you successfully haggle. Afterward, Monkey will give you the journal page and a voodoo necklace.