Lara discovers a temple containing the Dagger of Chak Chel and references to a hidden city. Murals adorning the walls allude to the Silver Box of Ix Chel and warn of "the Cleansing", a Mayan apocalypse culminating in a permanent solar eclipse. Lara ignores the warnings and takes the Dagger to prevent Trinity from acquiring it. Dominguez catches her and reveals that by taking the Dagger, Lara has triggered the Cleansing. He takes the Dagger, intending to unite it with the Box to stop the Cleansing and use the power it grants him to remake the world in his image. Lara and Jonah escape a tsunami that destroys Cozumel and foreshadows the coming apocalypse. Despite growing tensions between them over her actions, Lara and Jonah pursue Dominguez into the Amazon. Their plane crashes in the Peruvian jungle during the second cataclysm—a massive storm—and the two find their way to Paititi, the hidden city shown in the murals. Exploring local tombs reveals that piercing the Box with the Dagger will grant the user the power of the god Kukulkan, which must be used to halt the Cleansing.