Alfredo works at the Vulcanologic Observatory of Moquegua, Peru. He graduated in Geology from the University of Lima and specialized in Geochemistry both in Chile and Ecuador where he visited several of the most active volcanoes of the Andes.
When Magda arrives in Peru, he becomes her guide to the Huaynaputina volcano where they beguine detecting the first signals of a possible imminent eruption. From that moment on, Alfredo helps Magda in her struggle to understand that gigantic volcano and forecast its real intentions. In this process they get closer and closer to the crater while the magma chamber keeps growing underneath.