Sam and Dean walk solemnly back to the Impala, recently restored after a battle with a clawed demon from the previous week.
This is the third time Sam and Dean have been unable to find Culex. Dean likes to call him, "Mosquito-Man". There doesn't seem to be rhyme or rhythm to his killings. No demonic patterns- completely untraceable.
"You sure this is a demon?" Dean asks, "Maybe it's just a serial killer."
"No, it's definitely a demon," Sam responds.
"Just wish we could've found the thing," Dean says, as he kicks a can on the ground.
"Yeah, me too," Sam says. The brothers' heads snap up as they hear a woman's ear-piercing shriek.
Rushing down the street, Sam and Dean peer around the wall into an alley. There, they see a girl with shoulder-length black hair lying unconscious on the ground. A tall, hooded figure towers over her. He opens up his long trench coat and thousands of mosquitos come out in a swarm- it's Culex.
Sam and Dean jump out from behind the wall. Dean points his gun, loaded with silver bullets, at Mosquito-Man. He turns around quickly, reveals a scar easily visible in the streetlight, and glares menacingly at Sam and Dean. Dean aims then fires the silver bullet at Mosquito-Man. As it speeds toward him, he melts into the ground and disappears—his mosquitos gone with him.
Dean kicks the ground and curses, "Son of a b****!" He got away. Again!
Sam rushes over to the girl's side. Her chest is moving up and down slowly.
"She's still alive," Sam says, some relief evident in his voice.
"We need to get her to a hospital," Dean says, his fingers dialing 911. "Now."
The ambulance comes within ten minutes, and Sam and Dean follow. As they get there, and the girl is rushed through the Emergency Room, Sam and Dean are bombarded with questions from the police.
"That's all?" The police officer, Chief Patterson, asks Dean.
"For the third time," Dean says through gritted teeth, "the girl was on the ground, some guy was standing over her. And when the guy saw us there, he ran."
Chief Patterson gives Dean an unbelieving look, then walks towards the other officers. Dean stalks over to his brother's side. "Nosy, annoying cops," he mutters.
"What next?" Sam asks, "Ask the girl questions, see what she knows?"
"As always," Dean says, nodding. "Let's go find her."
The boys find the still-unconscious girl lying in a hospital bed. She is the only one in the room, which is good.
"So, what do we do," Sam asks, "wait until she's awake?"
Dean plops down in a chair next to the hospital bed and leans his chin on his palm. "Guess so,"
"So," Sam says, looking over the girl, "Why do you think Culex was attacking her?"
"I don't know." Dean says, also staring at the mysterious girl. "But I do want to know why he would give her up without a fight."
"Maybe he thinks he'll get her later?" Sam asks, Dean thinks for a moment.
"Or maybe she works for him." Dean says, his eyebrows furrowing in thought.
"What do you mean?" Sam asks, looking at Dean.
"I mean, maybe it's a betrayal deal, you know?"
The girl starts to rustle in her bed slightly. Dean sprints out of his seat and he and Sam sprint towards the girl's bedside.
"You really think she's a demon?" Sam asks, checking over the girl, "She looks so... normal."
Dean scoffs, "Anything can look normal, Sammy."
"Possessed, then?" Sam asks, still not quite sure that she's a demon.
"Maybe. We'd have to check for signs, though." Dean says, leaning in close to the girl and sprinkling some holy water from a flask on her forehead-no reaction. Dean stands back up straight. Sam looks at the girls hand, no markings or embedded symbols. He picks up her hand gingerly to make sure.
That's when her bright purple eyes snap open.