A/N: Hi! Okay, so, this is my first REAL fanfic...I'm actually writing it in a notebook first, and then typing it up on the computer. I have the first half, or one third of the story finished, and I'd really like to complete this because I'm excited about it. ;) It takes place right after the season 4 finale, and it's pretty much what I would do for season 5. ...well, kind of, lol. Hope you enjoy, please don't forget to review!

Chapter One: The Final Seal

Dean's P.O.V.

"I'm Sorry."

He looks tired, weak, guilty, and terrified all at once. I want to say something like, "I know." "I forgive you." "I'm sorry too." But I can do nothing except stare back at him. I begged Castiel to let me talk to Sam, but now that I'm here, I don't know what to say.

Suddenly this bright light breaks through the sigil made from Lilith's blood on the floor. The anger at Ruby for manipulating my little brother, the pride at Sam holding the bitch for me so I could finish her off, everything I felt just moments before disappears now, and I'm filled with fear. My eyes widen and as we stare, I grab Sam's upper shirt and pull. "Sammy, let's go," I say urgently. I feel him grab my shirt too.

"Dean," he says quietly, "he's coming."

Lucifer.

I've got to get Sam out of there.

The light's almost too much. Shielding my eyes with one hand, I literally drag Sam out with the kid will do nothing but keep staring. Once those double doors are behind us, though, he finally starts to cooperate and runs beside me. I don't think either of us has ever run this fast before.

We're almost out of the building when a horrifying roar fills my 's almost enough to make me stop dead in my tracks, but instead, I run faster.

Once we're outside, I realize that my impala's still at Bobby's. "Uh, Sam—" He grabs my arm and jerks me to the right. "This way!" I follow him to an orange car that he and Ruby must've stolen. I don't ask any questions and hop in the passenger seat. Sam's in right after me, and soon we're speeding down that dirt road at over 70 miles per hour.

Something catches my eye in the side mirror, and I look to see that the convent is surrounded by a swirling white light. The longer I stare, the faster it gets.

"Sam," I say in a warning tone. He must've looked in the rearview mirror, because I hear him swear under his breath and can feel him slamming his foot down on the accelerator. We're flying by trees so fast, they're nothing but dark green blurs.

"Shit," Sam hisses before he suddenly screeches to a halt. I'm jerked forward and backward against my seat. I'm about to ask him what the hell he's doing…that's when I see them.

Dozens of people with black eyes are blocking the main road. Demons. Did a signal go off or something? Could they sense Lucifer rising? That has to be why they're here, right?

The car starts moving again, slower this time. I shoot Sam a questioning look. "Sam, what—" I stop. My brother's eyes are black like theirs and he's gripping the steering wheel so tight that his knuckles are white. I'm about ready to splash him with holy water, thinking he's possessed, when he says, "They're not here for us." He sounds like he's in pain.

Sure enough, as we approach the crowd, they part to let us out. None of them even glance in our direction. They're eyes are fixed on something in the distance. Maybe Lucifer's roar is drawing them all here, not giving them a choice.

…is that why Sam looks like he doesn't want to leave?

"The amount of blood Sam would need to kill Lilith would turn your brother into the next thing you'd feel compelled to hunt."

…is my little brother a demon?

My gaze fixes on Sam. I get it now.

"Let me drive," I say quietly. He nods and parks in the middle of the crowd. We both jump out at the same time and run to switch sides. Once we're both in, I throw the car in drive, and try to get through the mass as fast as possible.

Sam's hissing in pain, and when I glance over, I can see him leaning forward, elbows on his knees, clutching his head with both hands. "Dean," he grounds out. We're finally on an open road and I'm driving as fast as this thing will go.

"Hang on, Sammy."

We get to Bobby's a few hours later. The sun has already risen by time I park, and Sam's passed out from the pain, thank God.

Once I cut the engine off, I just sit there, feeling exhausted. I need time to think, get my facts straight. But I guess right now what I really need to do is get Sam inside and talk to Bobby.

I open my door and climb out. I hear the creak of a door opening, a slam as it shuts, and then I can see Bobby jogging over to us.

"Dean?" He calls as he gets closer. He's glaring at me. "Where the hell did you go, son? One second you were there, and the next—"

"The angels took me," I reply, cutting him off. He's still glaring. I know he's confused. "Look, I'll explain everything later, but right now, I need you to help me get Sam out of the car." I'm already walking around to the passenger side, and Bobby's right behind me. "Sam?" He asks.

I open the door to reveal a still sleeping younger man. I bend down to gently shake his shoulder. "Sam? It's time to wake up, buddy." He groans and his head lolls to the side. "Sam?" I call again. He doesn't reply and I sigh, cursing under my breath. I turn my head in Bobby's direction, but don't look at him. I nod toward Sam. "Help me out here."

We each grab one arm and hoist them over our shoulders. Sam must've outdone himself when he killed Lilith. I just need to get him in the house and let him rest.

When we reach the front door, I kick it open and we bring Sam to the couch and lay him down. For a minute, we just stand there, staring at him. Then I feel Bobby's eyes turn on me. "What happened?"

I don't look at him, not yet. I just respond, sounding tired even to myself. "He killed Lilith."

"What?" He whispers in shock. He looks back at Sam, and it's another minute before he goes on. "So…is this all over?"

I swallow hard and lift my eyes from Sam. I finally turn to Bobby and lock gazes with him.

"Far from it," I say. His brow furrows. "Lilith was the final seal.