Hi everyone! You guys are being so kind to me! I love you soooo much! *huggles* This is a bit of a shorter update but satisfying I hope.

Thanks to missfervent, ladygiggs, Ziggymia123 and BranchSuper for the reviews! Doc-trigger, anonymous-unkown, PrincessRachW, and circleofstars for the story alerts, and Jianali for the favorite author though I'm not sure if you've read this story or one from another section of fanfiction but thanks anyway!

I do not own Supernatural. If I did, Lucifer would be back just because I love Mark Pellegrino too much.

Chapter Four

Sigil

Chelsea looked between the two a moment. They knew each other? Of course they did. Everything messed up had something to do with Cas. Maybe they were in on it together but something told her otherwise. Right now he was her ally. Somehow she knew that.

"Let her go," Cas commanded, giving Derek the harshest glare she had ever seen.

Derek started chuckling. "You're in no position to be giving orders." After he spoke, Cas began to cough, blood pouring out of his mouth. "I do not obey humans."

Did not obey humans? What did that make him? Chelsea began to struggle in his grip again but only found the grip around her neck tightened. She gasped and began to claw at his arm with her hands. Her legs were kicking frantically. It was like she was drowning but no matter how hard she tried, she would never get any closer to the surface. She looked over at Cas again. He looked consumed by rage and seemed about ready to leap out at Derek.

"She has nothing to do with this," Cas said, blood still running from his mouth.

"Really now?" Derek grabbed Chelsea's left wrist. "You marked her, Castiel."

Cas suddenly looked very guilty, as though he acknowledged his role in this. Chelsea did not understand it. She got a handprint on her wrist and suddenly she was public enemy number one? Nothing was making sense. Nothing had since he showed up. She never thought she would pray for having a cheating fiancé be the worst of her problems again.

"You know what must happen to her," Derek continued. He let go of Chelsea's wrist and pulled a long, silver blade out from behind him, very similar if not exactly the same as the ones she had seen in her visions. Her eyes widened in fear as he moved it closer to her neck. She no longer struggled. Once again, she was frozen.

"You will not harm her." Cas actually got out of the hospital bed and seemed ready to fight Derek, though he looked very unsteady on his feet.

"And I suppose you're the one to defend her," Derek remarked, watching as Castiel began to cough again. He fell to his knees, arm holding on to the bed to keep him from completely hitting the floor. Chelsea watched his blood drip onto the white tiles. Her hope faded a little more with each drop.

Derek began to laugh again, stooping to the ground with Chelsea to get a good look at his face. Cas looked up at him, face as enraged as ever. He looked like some wild animal. It frightened her to see what he had become but Derek just seemed all the more entertained.

"You're no longer one of us, Castiel. You're weak and broken."

Chelsea watched his face fall. Cas looked toward the ground again. He seemed to shrink before them. She stared at him while Derek laughed more, silently urging him to get up, to try something. Slowly she saw his hand curl into a fist. While Derek was distracted, Cas reached out quickly and grabbed his arm, turning the blade against him. Derek howled in pain as it pierced his shoulder. He tossed Chelsea aside, where she bounced across the floor until she hit the door.

"I'm strong enough, Micah," Cas replied.

He made no attempt to flee as Derek ripped the blade from his shoulder, a strange light pouring from the wound instead of blood. Again he moved fast and in the blink of an eye, he had Cas pinned to the wall, hand around his neck attempting to crush the life out of him. He would succeed too if she did not think of something. But what could she do? Physical force was useless.

Without thinking, Chelsea reached up to the cut on her head and began to use the blood to draw symbols on the door behind her. She had no idea what she was doing but she was not about to stop.

"You will never interfere again, Castiel," Derek hissed as he tightened his grip. Cas slowed his struggles against the grip and his eyes began to roll into the back of his head. He was losing consciousness. Suddenly a bright light filled the room as well as the sound of Derek's scream and Cas dropped to the floor, a hand no longer around his neck. He coughed for a while. This time no blood was produced.

He looked up to a very frightened Chelsea staring at him, her hand on a bloody sigil on the door.

"Are you alright?" he asked, voice much hoarser. Cas saw her give the slightest of nods but other than that, she remained where she was. He slowly stood and walked in her direction. Chelsea simply watched him, unable to move. One moment a man was standing there and the next he was gone in a ball of light all because she had placed her hand on some bloody scribbles.

"How…how did I do that?" Chelsea asked, taking his hand as he helped her up. "Where did he go? What happened to Derek?"

"I don't have time to answer that," Cas said, stepping in front of her. He checked both ends of the hallway but the hospital had grown quiet once more, as though nothing had happened. "We need to leave."

"Leave? No, we can't leave. We need to call the cops." Chelsea walked over to the phone and picked up the receiver.

"Micah will return and no one will be able to stop him. You will not survive and neither will I."

Chelsea sighed, her hand resting just above the 7 button. She listened to the dial tone for a long time, debating silently to herself. While she had more confidence in bullets than bare hands, after what she had seen, she doubted that they would be any more effective. Cas had known him. He could not be lying but it all just seemed so impossible. She was not ready to just play along.

"Chelsea, we do not have-"

"Okay…just, give me a second," she said, dialing a number. "Hi Tamara…yes, I know. I need you to come in…just trust me, you need to come in…no, I can't explain…I've got to go."

Chelsea hung up the phone and walked past Cas into the hallway. "C'mon, you can't walk around in that outfit."

They headed to the locker room where Chelsea had been holding on to a coworker's scrubs. He was about the same size as Cas, so they should fit him. However, when she opened the locker door, she found a different article of clothing looking at her, one that was very familiar. Slowly, she pulled the tan trench coat out of the locker and turned to look at Cas. He did not look confused but he was starting to get that guilty look on his face again.

"Please tell me I didn't do this." Cas remained silent. Apparently lying was not his forte. "Oh my God…" Chelsea leaned her head against the locker a moment before pulling out the rest of his wardrobe and handing it to him. Everything was intact and bloodless as though he had never been hurt. This gave Chelsea a little more hope that she had not broken into an evidence locker.

She looked back over at Cas. He was staring at the pile of clothes in his hands rather strangely. For a guy that said they had no time, he sure did not move very fast.

"You need to change on the other side," Chelsea said, pointing to the row of lockers.

Cas tilted his head again. "Why?"

"Because I'm changing on this side."

"Oh," he replied, hanging his head slightly in embarrassment. It was so strange how one second he could be this tough, animal like person and then the next he was like a child, looking lost and confused. This all resulted in more questions but she was too afraid of the answers to ask them.

He walked over to the other side of the lockers while Chelsea pulled her own wardrobe out. She normally just traveled back and forth in her scrubs but in case there was a change of plans, she kept some clothes in her locker. Right now she had a white tank, black blouse and some jeans. She quickly threw them on and then went into the bathroom. It took several paper towels and a lot of swear words but Chelsea finally got the blood cleaned off her face and the cut on her head to stop bleeding.

Cas entered the reflection, watching Chelsea pull her hair back again. He looked just like she had seen him before except his tie was not done. Something told her he did not know how to work it.

"Are you ready?" he asked.

Sighing, Chelsea grabbed her keys. "Yeah."

They ran through the hospital hallways, unable to attract any attention because every part of it was as silent as where they had come from. Chelsea did not ask why this was. She just wanted to get out as fast as possible.

Climbing into her small, red four door, Chelsea turned the keys in the ignition, immediately shutting the radio off before anything could play. She was not in the mood to hear any of it. For a minute she just sat there, unsure of what to do.

"So, where do we go? My place?" Chelsea asked, glancing over at Cas a moment.

"No, it's too dangerous. He'll know where you live."

Chelsea decided not to ask how he would know. "Then where?"

"We need to get to Dean and Sam Winchester."

"Who?"

Cas looked at her. "They are friends. They can help." She hoped they were not the kind of friends like Derek was, whatever he was.

"Okay…how do we get to them?"

He paused. "We need to get to an airport."

"An airport!" Chelsea shouted. "Getting me to leave the hospital is one thing but the state? I can't just drop everything in my life!" She was tempted to just kick him out of the car and drive off, even if she did owe him her life.

"You have to, Chelsea," Cas said, his voice going deeper. It seemed to do that whenever he insisted upon something. "This is not a game. This is not some situation you can fool around in. Your life is in grave danger and I can barely protect you. Either you come with me or you will be dead within the hour."

Chelsea felt a chill wash over her and her breath became shaky. She was afraid, terribly afraid. Follow a man that she used to not trust (and really still did not) into the unknown or be killed by something that she was fairly certain was not human. It was all so confusing and impossible. Everything she had seen, it was unbelievable. She wished it was all a dream but it could not be. This was reality, somehow.

She took a deep breath. "So, where are we going?"

Cas leaned back in his seat. He seemed to be satisfied by the fact that she agreed with him but she could still see him struggling with something.

He finally sighed. "Davenport, Iowa."

Sorry if I messed up any grammar. I'm like writing at the speed of light to update before I go to work.