Emily, Kate and the other demons, left Beth in the forest to die. Beth was never the same. Beth somehow found her way home and was taken to the hospital to fix her leg. Beth began to talk about what happend to Kate. No one believed her and sent her to a mental hospital. She never recovered.
As for Emily and Kate, they proceed to kill many one by one. And many thought it was just random murders but it was far from it. The killing sprees continued and continued. More than 100,000 were dead. Finally they stopped they had collected enough people. Those 100,000 people were all transformed into demons and from there they had begun their work.
Emily and Kate had led an army of demons to attack the people. Many of those people died. The people that died were turned into horrible demons. Those that lived hide. They hid for. The demons and tried to find a way to live forever. They failed. Now only less than 10,000 people live the shadows. Hiding form the demons, hiding from death. Some people think these are what are left of the angels but that's only a myth. Or is it?