A strange epidemic is taking over ancient Machu Picchu. Every full moon, llamas disappear from the Incan village, and villagers report hearing mysterious howls. Could it be a werewolf? Jorge, Amy, and Elena travel back in time to find out. As the sun sets and the full moon rises on the ancient Incan citadel, these brave monster hunters will have to face the darkness of night to solve the mystery. This graphic novel includes monster profiles and survival tips as well as in-depth content on the social structure, government, and fashion of the Inca Empire. Backmatter includes an activity page and character information.