She and Thomas begin to realize that DMT-19 works as a "radio antenna" of sorts that allows otherworldly entities to broadcast signals to the people on the drug as well as take over their bodies. They also realize that the government never came up with DMT-19 but instead received instructions from the otherworldly entities and made the drug without realizing the full implication of their actions. In addition to the base chemical compound, scientists were also adding harvested material from the pineal gland of a female corpse, dubbed the "Primary Source", who returned to life during an experiment and attacked one of the doctors.