Attack at Bobby's House

The Attack at Bobby's House was led by Azazel's daugter in an attempt to secure the Colt from the Winchesters.

Background
Having been conned by John, the demons wanted the real Colt. Azazel's daughter then tracked the Winchesters at Bobby's House. Meanwhile, Sam and Dean needed to know the location of their father John, who was being kept a prisoner of the demons.

Battle
Bobby was alerted when he heard his dog Rumsfeld bark and yelp before remaining quiet. When he tried to look for Rumsfeld, Bobby only saw a broken chain hanging loose. A few moments later, the demon came bursting through the door, completely detaching it from its hinges. Dean opened a flask of holy water but he was flung away by the demon through telekinesis. The demon started to voice her anger and disappointment while advancing menacingly at Sam and Bobby, who were slowly inching away from her into the corner of the room. The demon continued to taunt the hunters, asking them if they thought she couldn't find them. Dean, now fully conscious, speaks behind the demon, revealing that they were counting on her to find them. He then looked up at the ceiling, revealing a Key of Solomon that effectively trapped the demon.

Sam and Dean then tied the demon to a chair and interrogated her on John's whereabouts. Initially, the demon would not answer and continued to taunt the hunters. Dean then ordered Sam to start the exorcism ritual, which angered the demon even more. As Sam continued the ritual, the demon revealed that John was still alive and they were keeping him in a building called Sunrise Apartments in Jefferson City. The demon then begged for them to stop. Dean wanted Sam to finish the ritual, but Bobby told them that if she really fell from a building several stories high, the only thing keeping the host alive was the demon. Dean argued that exorcising the demon would free the human host from her misery and told Sam to finish the exorcism. Sam finally exorcized the demon, which was absorbed by the Solomon Key, leaving Meg Masters still tied to the chair. They laid her down to the floor as she coughed up blood and gradually died.

Aftermath
The encounter allowed Sam and Dean to rescue their father. Bobby said he would take care of Meg Master's body.