A/N hey all There have been some changes to this story it has gone through a bit of a rewrite, it's never quite good enough in my head so some things have been changed. The character of Kelsey is now Olivia, and there will be more drama down they way. please bear with me while at first it may not seem like im useing the valve universe I have just been trying to work it in. that being said, I do not own left 4 dead or its characters, only this group of survivors, that honor belongs to Valve. please review, constructive critisicim is always appreciated, it makes us better writers. and now without further blah from me, on to the story.

Immunity for some.

They had been at the farmhouse for a day when they finally heard news if it could be called news from the military. Carver and Tyler had managed to find an old ham radio in the hanger on the property. They were sitting around the living room, the radio in the center of them, Carver was flipping through the channels looking for anything, and a bowl had been started and was being passed around as they all listened to the static. It was faint at first but eventually the sound came through.

This is a message to all survivors. Survivors should head to evacuation points, in Denver, Colorado Springs and Fort Collins. Survivors should avoid contact with infected unless Immune. Quarantine is suggested for individuals who have come in contact with infected. Symptoms of infection should appear within minutes or can appear up to 12 hours later. Again all survivors should head for evacuation points in Denver, Colorado springs, and Fort Collins…the message repeated, into the silence that now permeated the room. A chance for Immunity, so there was the slim hope that they could survive this. There was silence for a moment longer before Olivia stood up and left, a few moments later Tyler followed after her. He found her in the kitchen her arms braced against the counter. Tyler approached her quietly before he placed a hand on her shoulder.

"Are you all right?" he asked.

"What the fuck man… immunity, you mean he might not have turned. Fuck I shot him and he could have survived it." She said, her shoulders quaking slightly as she tried to repress the urge to cry, she hadn't for years she wasn't about to now.

"Hey, you don't know that, you made the right decision. He very well could have changed, he was already starting to show signs of infection, and you did what you had to do to survive. I already told you that I want you to do the same for me if I look like I'm not immune."

She sighed "You're probably right. It's just a bit of a shock to find out that we might be immune."

"Agreed, but let's worry about that later, we have a lot to do today you know, we found some supplies to make pipe bombs, and some Molotov cocktails. Plus I'm intrigued by this blood bomb idea that you and Carver were talking about. "

She nodded her head, and they went back into the main room. Tyler wasn't sure if she was okay but she was acting fine at the moment and as long as she didn't lose it when they really needed her, he was just going to let it go.

"So who's going out today to scavenge?" Violette asked as they came through the door.

"I will go out, Charles and Carver you want to come with me?" Olivia said, "Would you three set up a quarantine room, just in case, and work on the pipe bombs and Molotov's?" a collective nod.

"Sweet, we should smoke a bowl before we take off." Carver said

"Agreed," chimed in Tyler. It's absurd I know it that we would bother with smoking but fuck man it's been a hell of a morning. Tyler thought. The pipe made the rounds sure it was probably dumb to inebriate themselves before going out into a life threatening situation, the news of possible immunity had lifted every ones spirits. The atmosphere amongst them had changed and even though the threat of death was constant, there was now a silly inconsequential hope that the world wasn't completely fucked. And so they enjoyed the taste and the mellow smell of the smoke that permeated the air throughout the house. Olivia, Carver and Charles went out soon after that and the others set to work on the quarantine room and the explosives.

Tyler was sitting at the table with the steel pipes, and the black powder they had managed to find. He was gently putting them together, meticulously wiping out the threading of the caps to prevent friction caused ignition. Violette and Jane were turning a room on the bottom floor into a quarantine area. They had managed to move an old couch into it. Granted it was for quarantine, but somehow both of them silently agreed that if someone had to spend time in there they should have at least some comfort. Seeing as there wasn't much else for them to do with the area they went to help Tyler with the Molotov's, using the alcohol they had found in the house. Hopefully the others would find more supplies while they were out.

It wasn't long after they finished that the others got back. They had managed to find some more alcohol, some gasoline and a few propane tanks. It wasn't much but it would do if they were in a pinch. Olivia walked over to Tyler admiring his handiwork; she had a bag with her and a mischievous grin on her face.

"What's in the bag?" he asked

"Oh in here? Well I think I might have figured out the dispersal mechanism for the blood bombs."

"Oh? Please elaborate."

She grinned and fished out a glass. Tyler looked blankly at her.

"A glass bottle?"

"I know it's brilliant huh?"

"Not what I would have said but whatever floats your boat." He said. She punched him lightly on the arm.

"Asshole. Sealing it is what's going to be the problem but since there's no need for a fuse and we just want to see if it will even work, I figure glass shatters easily almost like shrapnel if thrown from enough distance, and the blood therefore will coat more zombies."

"I hope this works, we don't even know if they will go after the ones covered in blood or if it will just make the ground slippery."

"Only one way to find out." She grinned.

"Would a bottle cap work?"

"Do we have any?"

"Funny you should ask." Tyler stood up and motioned for her to follow him he led her down the hallway to one of the bedrooms he opened the door and went inside. She followed him in, he closed the door, and lo and behold the back of the door was covered in bottle caps. Now that she got a look at the room it was obvious that it had belonged to a teenage boy at one point. Metal posters covered the walls.

Olivia turned to look at Tyler,

"Well what do you know, it's out lucky day." She smirked. They pulled a few off of the door and found some duct tape in one of the dresser drawers. They went back out to the table and grabbed a bag of blood and set up one.

"I have never seen a more elegant weapon, a beer bottle full of blood with duct tape wrapped around the top." Olivia said sarcastically.

"Shit you threw one of those at me I'd start running." He said a huge grin on his face. She grinned back.

"I'm going to go see what everyone else is doing." She said and left.

It was a few hours later, must have been around 5:00 in the evening when the shit decided to hit the fan. Everyone had taken a few minutes to gather in the main room and eat a little food. They hadn't been in there long when they heard a loud hacking cough coming from outside. Everyone froze at the sound.

"Is that a survivor you think?" Jane asked her voice breaking the silence.

"I don't know." Charles replied.

"We should go check it out." Tyler said and with that he had already grabbed his gun and was heading towards the door.

"Wait." Carver said as he grabbed Tyler by the arm. "We don't know what or who that is, we go in a group, and I'll come with."

"Me too." Said Olivia. They grabbed their guns and went to join Tyler at the door, he cautiously pushed it open. The coughing was louder but it sounded like it was coming from up high. They moved out of the doorway and started moving towards the sound. They were about Fifteen feet away from the door when they heard the coughing again, except this time the cough was accompanied by a slimy appendage like rope shooting towards Tyler. It snared him around the chest and started dragging him towards the hanger roof.

"Holy shit somebody shoot this thing!" he cried. Olivia and Carver went bolting after him following the rope to a zombie standing on the roof. It was pulling Tyler towards him, with what appeared to be its tongue. A few rounds struck the zombie in the head and it exploded into a cloud of green smoke. They rushed to Tyler who was pulling the lengths of slimy rope off, trying to regain his breath, they bent down to pick him up Olivia handed him his gun.

"What the fuck was that?" Olivia asked.

"No clue" said Carver "but we should get back inside before any more zombies show up. Are you all right?"

"Yeah I'll be fine."Tyler replied. They rushed back to the door; just before they reached it they heard the screaming wails of the infected.

"Fuck here we go." Carver said as they ran through the door slamming it shut behind them, Charles and Jane moving to barricade the door.

"Alright everyone up stairs, we will use the vantage point, if you hear coughing back up out of sight. We don't want anyone getting dragged outside." Olivia said. The next few moments were a flurry of activity as they prepared for the incoming onslaught. Violette and Olivia placed themselves at one window, Charles and Tyler at another and Carver and Jane at the last. It was Charles who saw them first.

"Holy shit there are a lot of them." He said quietly. It was as if the zombies were waiting for recognition before acting, because as soon as the words had left his mouth, the zombies began rushing forwards scrambling over one another to try to climb the walls to tear apart the survivors.

"Fire in the hole!" Carver called as he lit a pipe bomb the blinking light fading into the distance while some of the horde went chasing after it. It exploded and managed to take out some of the zombies. They were still shooting down at the oncoming zombies when Violette heard a faint growling noise from below them. She turned to ask Olivia if she had heard it to when all of a sudden a Zombie pounced on her friend, screaming and growling as its claws tore into her arms and chest.

"GET IT OFF ME!" Violette put two rounds into the back of it, knocking it off of her. It stumbled backwards into the room, and was taken down by Tyler who was rushing towards them.

"Can you get up?" he asked

Olivia looked at him. "Yeah, I'm fine if I change you shoot me but right now we have to fight the rest of these assholes off." He nodded.

"Now would be the time to try the blood bomb." He said. She nodded in agreement. She grabbed the bottle and chucked it out the window; it shattered and managed to cover a couple of zombies with blood. A few moments of stumbling around and when they didn't react, Olivia cried in frustration.

"Oh come on it was a good theory!"

"Worry about it later!" Carver scolded. Since that was bunk they had to rely on making each shot count. As fortune would have it the only had to fight off a few more before the horde disappeared. When the last zombie fell so did Olivia, she had lost a quite a bit of blood and had pushed off help.

"I'll be fine, but you need to quarantine me for the rest of the night." She said Violette made to protest, but she shook her head. "No chances remember. If I turn I will only endanger you, so don't waste the medical supplies on me till morning, I can hold out till then it's only 8 hours away. How hard can it be." She grinned. But the pain she was in was obvious. Tyler bent down to carry her to the quarantine room.

"Tyler will you promise me that it's you that shoots me when I turn?" she asked

"You mean IF you turn, you might be immune."

She glared at him. "It's a big IF, please promise me."

He nodded. He pushed open the door and set her down on the couch.

"I'll be outside you call if you need anything." She just looked at him.

Tyler left closing the door behind him. He sat down with his back to the wall his head thumping against it. It was about an hour later when he heard his name through the wall.

"Yeah?" he asked.

"I was just wondering what you're going to miss most, you know pre- apocalypse?"

"That's kind of random." He said

"Humor me." Was the response.

"I don't know I haven't given it much thought. But I already miss the ability to bathe on a regular basis. What about you?"

"Traffic, I'll be the first to admit that I have serious road rage and people used to piss me off with their idiot driving skills. But I will miss it."

"Why if it used to piss you off?"

"Because it meant we weren't alone, and that even though the world is full of idiot drivers at least it's full of people not zombies."

Tyler was silent for a moment, "Wow of all the things to miss traffic. You really are nuts." He heard a weak chuckle,

"Yeah don't I know it? Tyler?"

"Yeah?"

"Thanks."

"For what?" he asked but there was no response, he just heard a gentle thud.

"Shit. Olivia are you all right?" Olivia?" he pounded on the door, still no response. Ah the hell with this I'm going in there if she changes I'll shoot her, but if she's still alive, she'll just have to forgive me for wasting the medical supplies on her. He thought. He pushed the door open to find her on the floor. He moved over to her, her breathing was shallow, and she had passed out from blood loss.

"Okay shit Olivia can you hear me? Hang in there ok I'll be right back." He ran out of the room nearly colliding with Violette.

"Tyler? What's wrong?" he grabbed her and pulled her into the room.

"Stay with her I'm going to grab some supplies. Here is my gun in case she turns but I don't think she will. She would have already." Violette nodded and knelt next to her friend pulling her head into her lap. Tyler ran out of the room, and into the kitchen where all of their supplies where. He grabbed everything he could think of and a bottle of water, as he was leaving the kitchen he ran into Jane.

"Jane sorry but I need to get back to Olivia. I could use some help." She nodded and followed after him. He came through the door, handing Violette the medical supplies he took back his gun and moved to help her pull the jacket off of Olivia's body. She had lost a lot of blood but the cuts and gashes on her arms were shallow, not enough to cause major blood loss. Jane made her way cleaning out each gash on the arms while Violette followed stitching up the deeper ones and bandaging the smaller ones. She was still bleeding though. It was then they noticed the blood stain on the tank top she was wearing it was dark and thick. Violette gently pulled the shirt off and gasped. A huge gash ran diagonal across Olivia's chest, blood oozing from the wound. Tyler looked up at the sharp intake of breath. He was holding Olivia's head in his lap, he looked where Violette was looking and his gasp mirrored her own. Why the fuck didn't she say she had been hurt so badly? He thought. Goddamn stubborn sonuva bitch, she's going to die because of this. He felt her body twitch as Violette cleaned out the wound and began the arduous task of stitching her up.

Tyler looked at Violette. "Why aren't you using any of the morphine?" she looked back at him,

"Because, she has lost a lot of blood and I am afraid that if I give her a pain killer or even a mild anesthetic she won't wake up." Tyler looked back down he brushed his fingers through Olivia's hair, he didn't know why he had gotten so attached to her in only a matter of a few days, but she had saved his skin enough times, and there was something about her that he couldn't figure out yet. And damn it if she was going to die and not let him figure it out. He looked back up at Violette who had finished sewing up the gash and was now bandaging it.

"And now we wait." She said.

"And now we wait…" he said.

The next hour was one of the longest of his life as they waited for her breathing to even out and the color to return to her overly pale face. When her breathing finally evened out the three of them let out a collective sigh of relief when it looked like she would make it .Jane silently made her way out of the room, a few minutes later Violette followed, saying something about the two of them getting some sleep. Tyler just nodded his head. He gently picked Olivia off the floor and moved her to the couch. He sat back down on the floor and leaned his head against the couch. It wasn't long before he fell asleep.