The Embryon visit the Maribel Base to form an alliance with the Maribel, so that the two tribes can defeat the Solids. At first, Jinana, leader of the Maribel, is skeptical about the alliance, so the Embryon have to fight their way through the city to meet her. Inside the city there are seven gates that need to be opened through switches, each of which is normally found near the corresponding gate. At the end of the dungeon, Jinana's lieutenant, Bat, challenges the Embryon in his Atma Avatar form, Camazotz. Once he is defeated, Argilla convinces Heat to let Bat live; he is left weakened and bleeding in the floor, vowing revenge against Argilla for humiliating him. Jinana agrees to the alliance, and the Embryon and Maribel travel to the Solids' base at Anahata.