~the boys' pov~

When they arrived, Bobby was waiting outside the Oasis Motel where they agreed to meet. " Hello boys," said the old hunter. The boys both embraced him while Cas stood off to the side. They rented two rooms and the four settled. "The demons are all in town now, I have been watching them for a few days and they all work their vessel's 9-5 jobs, then they meet," said Cas.
"Why haven't you seen what they do," asked Bobby.
"They angel proofed the warehouse and they haven't been out in a few days, that is why I called you," he replied.
"Then we go tonight," declared Dean.

~later that night~

The hunters and the angel arrived at the warehouse, everything was quiet.........to quiet.
"I don't like the look of this," stated Bobby.
All of the hunters agreed. Sam crept inside and started to wash away the angel warding.
"Done," yelled Sam.
Everyone crept in. There was nothing in the front, but as they reached the back, there was 8 bodies littering the floor.
Cas inspects one with his squinty thinking face and says, "They appears to have been stabbed with a demon-killing knife like yours."
"That's impossible," states Dean in disbelief.
Sam and Bobby nod their heads in agreement.
Dean and Cas then venture into a side room and sees a strange symbol on the wall.
"Hey guys," Dean calls, "take a look at this."
The others file in and see a black widow spider symbol drawn in paint. Bobby draws in a breath.
"Aww shit."