Part 4:
"Do you think something's happened to them?" Sam sighed at the question and shook his head.
"I'm sure everything's fine - Dad and Mark know what they're doing." he replied.
"But what if..."
"They're fine!" They have to be, he added silently, not wanting to voice his doubt outloud to the other occupant of the room.
Just then, the motel door flew open and John Winchester burst in carrying a dark-haired young man with him.
"Sam, keep that shotgun handy...Dean run and get the first aid kit" John ordered, leaving no room for discussion. Sam watched as a small sandy-haired boy moved from his side to get the first aid kit.
John took the kit from the boy and whilst rooting through it spoke to Sam.
"Sammy, something may have followed us," he said directly, as he pulled some bandages and alcohol out of the kit. "I want you to shoot whatever comes through that door understand?"
Sam nodded fingering the trigger. He glanced over at the hurt young man, noticing the deep jaggered claw-marked cuts across his chest and the blood tinging his lips.
"Mark, son, can you hear me?" John asked, as he proceeded to treat the injuries, aided by the 14 year old boy at his side. "Everything's going to be alright...you're going to be fine son."
-----
The sound of Dean's phone ringing had him jumping and fumbling to answer it. When he did so he was flooded with a sense of relief upon hearing the familiar deep tone.
"Dean?"
"Dad!"
He heard John sigh in relief on the other end of the phone. "How's Sammy?"
"Still in a coma..."
John sighed, hearing the worry and fear in his son's voice. "Dean, listen to me- I'm coming." He ignored the slight hitch in his son's breath at the shocking revelation that John Winchester was actually coming to the aid of his sons. "Now, tell me where you are..."
Dean took a deep steadying breath, trying to get over the initial shock brought on by his father's words, and then told him where they were.
---
After his conversation with their father, Dean returned to his vigil next to Sam's bed.
"Sam, dad's on his way here." he told his unconscious brother. "So, if you two could be civil to each other during his visit that'd be great. I mean after four years of non-contact you should be able to at least be in the same room right?"
He looked at Sam and shook his head...this was his fault. If he hadn't turned up at Stanford and dragged his brother away from his normal life, Sam would be training to be a hotshot lawyer. Instead, he was lying comatosed in an hospital bed plagued by a memory of a life that he had tried so hard to leave behind. A memory that could change everything Sam thought he knew of his past and family life. A memory that Dean had envied his brother many times for being able to 'forget'.
"I'm sorry I brought you back into this life Sammy" Dean whispered, holding his head in his hands.