Ever since crashing on the island, Lena had known that some people would get hurt, and even die.

Still, she didn't think anything could have prepared her for seeing John Locke carry a blood-covered Boone into the caves.

"Jack!" Locke shouted. "Help!" Thankfully, Jack was in the caves, and he ran over as fast as he could.

"No, no, no." Jack muttered. "Put him down here. What happened?"

"There was an accident." Locke explained breathlessly. Lena noticed, in horror, that he was covered in Boone's blood. "Boone fell off a cliff near the place we were hunting." Jack tore Boone's shirt away, and hie serious wounds became visible.

"Oh god." Lena whispered.

"I need some water, shirts towels, anything I can use to stop the bleeding!" Jack instructed. Lena dashed off immediately, gathering up supplies by the armful and dumping them next to Jack.

Just focus, don't think about it, Lena said to herself. But it was hard not to think about it while Boone was bleeding and dying right in front of her.

"John, tell me exactly what happened." Jack said. But, as he looked around the room, he didn't see Locke anywhere. "John? Locke?! Locke?!"

"He's gone Jack." The words burst out of Lena's mouth. "Focus on Boone." Jack nodded, closed his eyes for about five seconds, and then opened them, a newfound confidence in his expression.

"Alright." Jack said. "Sun, I need a pair of scissors, second drawer of the cart. Hurley, get me that first class seat from up there, and that mesh. We need to- Hurley, don't you dare faint! Lena, you need to keep pressure on his leg and stop the bleeding. Do what you need to do. And Kate, go to the beach and ransack Sawyer's stuff. I want any alcohol you can find."

Lena didn't really hear any of the instructions except for her own, so she kept pressure on Boone's bloody leg, adrenaline being the only thing keeping her going.

There was a loud gasping noise and Boone struggled to breathe, sounding like a fish out of water.

"What's going on?" Lena asked.

"His lung just collapsed." Jack replied quietly. He grabbed some materials and poked a small hole in Boone's chest where he inserted a tube. "There you, go Boone, just breathe." His head snapped up as he surveyed the room. "Kate, what are you still doing here? The alcohol! You want him to live, then get to the beach, now!"

Jack's words seemed to snap Kate from her shock, as she ran from the caves and down towards the beach.

"Lena, don't you dare let go of his leg." Jack warned as he readied himself for what was coming.

"Don't worry." Lena replied. "I'm not planning on it." Jack eased Boone's pant leg up in order to see the wound better, with Lena still holding it down.

"It hurts." Boone moaned.

"It's a closed fracture, but I think I can set it." Jack muttered.

"What about the wound in his chest?" Asked Sun, who was the only one left besides Jack and Lena. "Can you… sew him?"

"He's lost a lost of blood." Jack said. "I wonder how far Locke had to carry him."

"I'm going to die." Boone whispered.

"Boone, listen to me." Jack said, his voice shaking slightly. "You are not going to die, okay? I'm going to fix this, I'm going to save you."

"No, I can't…" Boone trailed off.

"Save your strength okay?" Lena said. Boone's eyes slid in and out of focus, but he didn't say anything more. Lena took a moment to steady herself before continuing to keep pressure on his leg.

"I'm starting with the chest wound." Jack muttered, more to himself than to Lena, Sun, or Boone.

"I'm sorry, I'm so sorry." Boone muttered.

Why would he have to be sorry?

"He needs blood." Jack decided.

"What, like a transfusion?" Lena asked. Jack nodded in confirmation. "How the hell will you do that?"

"I don't know." Jack admitted. "But I'll figure it out after I set his leg." Lena shuddered involuntarily. Setting bones always made her want to puke. But she had to stay strong now.

Sun left the tent and came back a few minutes later, holding a long stick. Lena didn't have to guess what that was for. And when Sun explained that it was for the pain, she put it between his teeth.

"Sun, will you hold his shoulders?" Jack asked. "And Lena, hold down his chest." Both women obliged, taking their assigned positions and Jack pulled Boone's leg as hard as he could.

Boone's scream filled the tense air, somehow unlike any cry of pain Lena had ever heard before.

"Now we need to give him a transfusion." Jack sighed. "But we don't know his blood type."

"Let me." Sun said, leaning over Boone. "Boone? Can you hear me? What is your blood type? Please, Boone, we need to know." Jack, meanwhile, was trying to make some kind of needle out of bamboo, but it wasn't working.

"Maybe try a smaller piece?" Lena suggested, but the look on Jack's face told her that was a terrible idea.

"Veins are like a wet noodle." Jack explained. Weird analogy, but alright. "First you have to find one, and then you need a hollow needle sharp enough to actually pierce it. The only thing I have is bamboo. Not that it even matters because I don't know his blood type, not to mention-"

"A-negative."

"Boone, what did you say?" Jack asked for clarification, but Boone had moved on.

"Shannon, the plane." He whispered. "Shannon…"

That brought his sister to the forefront of Lena's mind. Where was Shannon? If she had been at the beach, someone would have told her by now. Why wouldn't she want to be with her dying brother?

No, Lena reminded herself. He's not going to die.

"A-negative." Jack repeated. "Sun, get Charlie and ask everyone what their blood type is, okay? And find his god damn sister. Find Shannon."

"What do we do now?" Lena asked.

"We wait." Jack replied, putting fresh bandages on Boone's stomach wound.

"I found an A!" Charlie exclaimed, running into the tent a few minutes later. "But she doesn't know if it's positive or negative. I also found two B positive and one AB negative. At least, that's what he thinks."

"You only asked four people?" Jack said angrily.

"I asked the entire sodding camp!" Charlie said defensively. "No one knows their blood type. Hell, even I don't know my bloody blood type." Lena didn't know her blood type either, but saying that out loud wouldn't help the situation.

Sun entered the tent, looking frazzled but had a sense of accomplishment.

"Did you find Shannon?" Jack asked.

"No." Sun said, holding up a spiky sea urchin. "I got this. A hollow needle sharp enough to pierce a noodle." She broke off a piece and, sure enough, it was just right.

"It's perfect." Jack assured her.

"Sun, you are a genius." Lena added.

"Not to rain on your little parade, but I thought you said we needed someone who's A negative." Charlie pointed out. Lena frowned, knowing it was a valid point.

"Or O negative." Jack said. "Which I am. O negative is a universal donor. I can give him blood."

"Jack, are you sure?" Lena asked as he set up the transfusion.

"I better be." Jack muttered, plunging the needle in his arm. His blood flowed into Boone's veins and, maybe Lena was imagining it, but Boone started to look a little better.

Suddenly, Jin ran into the tent, yelling Jack's name. He stopped short at the sight of Sun, but only for a second. He launched into an explanation before realizing they couldn't understand him, and then uttered one word: "Claire."

"Claire!" Charlie said, perking up at the sound of her name. "What about Claire?" Jin hastily explained and then looked to Sun for translation.

"He says Claire is with Kate." Sun translated. "She's in labor, just of the beach. He says he think she's okay, but she's in pain."

Of all the days?! Lena mentally shouted. Seriously?

"Does he know how fast her contractions are coming?" Jack asked. Jin answered quickly, but Sun seemed to catch every word.

"Every 2 minutes." Sun said. "And she can't move."

"We need to go!" Charlie yelled. "We need towels, bandages… hot water? How to we take hot water?"

"Well, you need to figure that out." Jack sighed. With that, he gave Charlie and Jin instructions on what to do, and finished by saying: "Tell Kate she's going to have to deliver this baby."

Now would be a great time to have more than one doctor, Lena thought. But even if no one was injured, Jack wasn't a fertility doctor. If only there was one on the island.

"Come on Boone." Jack whispered, shining a light into his eyes. It was been about half and hour since Jin came with the news about Claire, and Boone's condition wasn't getting any better.

"The transfusion isn't working." Lena said.

"The blood isn't the problem." Jack explained. "It's his leg. All the blood is pooling there. He sure didn't get this injury from a fall. Something crushed his leg."

Sun smartly tore the transfusion tube from Jack's arm, stopping the blood. Lena really had to give Sun credit. That woman was very intelligent.

"You've given him enough." Sun stated, and while Jack protested, he seemed to know that what Sun said was true.

"We can take care of it, Jack." Lena said. "Go get some fresh air." Jack nodded gratefully and stepped out of the tent, leaving Lena and Sun with the bleeding Boone.

When Jack returned, Michael was with him, and he seemed to have a plan.

"What are you doing?" Sun asked worriedly.

"His right leg is filling with blood." Jack said. "If I don't stop it, he'll die. I won't be able to save him." Lena's eyes went past Jack and saw a cargo container just behind Michael.

"Jack, you can't-" She started to say.

"The leg is dead." Jack said, cutting a log in half with the door. And that was exactly what he wanted to do to Boone's leg. "There's no other choice."

Lena and Sun exchanged a horrified glance as Jack and Michael moved Boone to the cargo door.

"Jack." Sun started to say. "Jack! Why are you doing this? He's bleeding internally, you're not helping him! You can't save him, Jack!"

"Don't tell me what I can't do!" Jack shouted. Michael backed away quickly, his part being fulfilled.

"Jack." Lena whispered softly. "Don't do this." Sun gently pulled Lena's arm, communicating without words that this was Jack's decision.

From afar, Lena could see Boone talking to Jack weakly, hopefully talking him out of this crazy plan. And, while doing that, signing his own death warrant.

Lena let out a breath she didn't know she had been holding as Jack moved Boone near the water, giving him the best final moment he could.

And when Boone's eyes closed, it was for the last time.