At the pronunciation of the last syllable, an object falls to the floor; the heavy clunk echoing around the train car. All eyes turn to the door of the driver's compartment, where Jolene is standing; her electronic device has slipped from her belt.
"It's her!" Dean shouts, aiming the barrel of the gun to her head.
Jolene raises her hands. "Ok, boys, you got me." Her eyes turn black as ink.
Dean shoots. The bullet sinks into her flesh, seemingly without harm. "Rocksalt?" she laughs. "Please."
She throws Dean backwards down the aisle of the train car, to the horror of the other passengers.
Sam steps forward to address the demon directly. "You can't leave this train you know." he states. "You're trapped here."
"But this is exactly where I need to be!" the demon chuckles.
"Tell us exactly what you're up to!" he demands.
"Oh Sam, you know exactly what we're doing here!" Jolene laughs. "We're here to break the next seal of course!"
"Which is?"
"Well that would be telling." she winks. "The less you know the better."
Jolene flicks her wrist, causing a woman's neck to snap. Daisy screams with terror.
Graham looks up to Sam with desperation. "Sam, what do we do?"
Sam raises his hand into the air and closes his eyes. The demon's face falls. Graham watches with awe as she begins to choke black smoke. Dean lifts his head, rubbing his bruise, just in time to witness the exorcism. Sam opens his eyes, and sees Jolene's corpse blocking the aisle.
"Are we safe?" Graham asks. "Is she dead?"
Sam nods sombrely. "She's dead."
"Great." May mutters. "Now we're surrounded by four rotting bodies."
Dean approaches the Sam with an air of silent disappointment. "Let's carry both bodies into the driver's compartment." he suggests.
Sam nods, without looking his brother in the eye.
Graham interrupts the uncomfortable silence. "What was she talking about, 'breaking the seal'?"
"It's not what you think, Graham." Dean says, dismissing him. "C'mon Sam."
They lift the lifeless bodies into the driver's compartment. Dean slides the door shut, sealing them both inside. "So what the hell was that about, Sam? I thought you promised to stop using your psycho-mojo abilities in public?"
"Dean, I literally just saved the lives of everyone on this train!" Sam protests angrily.
"I don't care!" Dean retorts. "I don't like it, and neither do the angels."
"The angels?" Sam sneers. "Let's face it, Dean, the angels don't give a damn about us. We're in this on our own."
"You and Ruby, you mean..." Dean grunts.
"Whatever, we don't have time for this. I think I have a theory about the seal."
Dean turns his back on Sam, pretending to ignore him, but still listens attentively.
"The demons have killed four people so far...five if you include Miss Gardener: but none of them have been children."
"Thank God." Dean adds.
"Graham was telling me that his class have been travelling west across the States, all the way from New York. The demons have been following them every step of the way."
"So it's Graham." Dean concludes. "It has to be Graham."
"Most likely." Sam agrees. "And if it is, we have to do everything we can to protect him."
Daisy, May and Graham are seated together in a corner. Like the rest of the remaining passengers, they are solemn, silent and scared. The playing cards still lie on the table, untouched. The sunlight has still not found them; instead, rain begins to fall, leaving trails on the window panes.
"How do you know so much about demons and stuff?" May asks finally.
Graham gradually finds the courage to tell them of his family's past. "I'm a hunter, in a generation of hunters. My mum hunted demons."
"Why didn't you tell us?" Daisy questions.
"Yeah." May presses. "I thought we were friends."
"We are!" Graham promises. "I didn't even know myself until a few weeks ago!"
"You could have helped Miss Gardener!" Daisy cries. "You could have stopped her from being attacked, and being...possessed-"
"-and being killed." May finishes.
"I couldn't have stopped anything!" Graham insists. "I didn't know she would be possessed!"
"We've got a lot to tell the parents." May sighs. "I'm going to toilet."
"May, we're not supposed to leave this car." Daisy reminds her.
"This is an emergency." May says sarcastically. "I don't need any of those creepy mechanics to escort me to the bathroom."
May strolls confidently to the door, and strides into the next car, watched helplessly by Daisy and Graham.
"Graham, what if she gets kidnapped by demons!" Daisy pleads.
"They wouldn't want her." Graham assures her.
"We should tell Sam and Dean."
"Sam and Dean have enough things to worry about. Besides, May's obviously capable of taking care of herself. Pass me the lighter in her bag."
Daisy dips her hand into May's backpack and rummages around. Once she grasps her hand around it, she presents it to Graham.
"Wait a minute...that's not a lighter."
He inspects the object in her palm: a cartridge of orange-yellow liquid, with a cap on top, and a label displaying a deadly skull. Daisy and Graham exchange anxious glances.
"We should tell Sam and Dean."
Graham carries the cartridge inconspicuously in his pocket, and he and Daisy knock on the door of the driver's compartment. After a few suspenseful seconds, Dean opens, displaying a look of annoyance. "What?"
Graham holds up the toxic substance for Dean to see. Dean takes it and inspects it, before examining their faces. "Where did you find this?"
"Inside May's bag." Daisy pipes nervously.
"We think she might have been poisoning the passengers." Graham says firmly.
Sam appears behind Dean's shoulder. "What's going on?"
"These two say they found this-" Dean presents the poison to Sam. "-inside May's bag."
"You don't think it was planted?"
"It's possible." Dean nods. "But I think we ought to investigate. Where is May now?"
