How does Sitterson find out that Marty is still alive ?
Upon entering an underground temple , the two survivors meet the project Director who explains that every year worldwide rituals commence to appease malevolent beings identified only as " Ancient Ones " living beneath the Facility , they are kept in perpetual slumber through an annual pars pro toto sacrifice of five young people embodying certain archetypes : the Whore ( Jules ) , the Athlete ( Curt ) , the Scholar ( Holden ) , the Fool ( Marty ) , and the Virgin ( Dana ) .