Thelma learns from Peggy, the ghost of a woman who died in the 1918 influenza pandemic, that the gestation of Azazeal's child is weakening the veil between worlds, allowing more ghosts to appear to the living. If the child is born, the veil will be torn, allowing the rest of the Nephilim to enter our world. If the pregnancy is terminated, the veil will heal, preventing the Nephilim from returning and leaving Azazeal the only one of his kind in our world. But there is a side effect: ghosts will also vanish from this world.