The two examine Isabel's room in the hospital and find a clue (left on the window only revealed by Angela breathing on it) pointing to a prophecy in the Satanic Bible and enlist the help of Constantine's weapons supplier, Beeman, who informs them that the mark belongs to Lucifer's son, Mammon. The prophecy states that Mammon will attempt to claim Earth as his own kingdom. In order to cross over, Mammon requires both a powerful psychic and assistance from God. Constantine and Angela find Beeman's corpse engulfed beneath a swarm of flies.