A/N: Firstly, thanks to everyone who reviewed the last chapter! And secondly, I have up to chapter 13 written, but it would be no fun to just post them all right now, so I'll space it out a bit. So updates should hopefully come soon! Ahh yes, one more thing. In this chapter... I guess it occured to me that it sounds a little... overboard. But I really wanted to emphasize the "Mutual Fear" title of the chapter. So if things start sounding really weird... just bare with me, as things will be explained in further chapters, lol I have it all planned out:) Anyways, I hope you enjoy this chapter and feedback is always appreciated.

Chapter 11- Mutual Fear

Greg had left the room momentarily, claiming there was something he needed to find. He knew it wasn't a very good excuse, but he was beginning to become more and more uneasy around Nick. He knew that Sara was probably right, that if he just talked to Nick about it, it would clear things up. Still, he feared what Nick's response might be.

Once he was out of the room, he sat down in the hallway far enough out of sight so that Nick didn't see. He felt like his thoughts were getting out of control. It had started out with being just a little scared of Nick, but the more Greg tried to ignore it, the more it turned into full blown fear.

He took a few deep breaths.

"I'm going to tell him," Greg whispered to himself.

Finally, he got up and started to walk back into the room where Nick was. He decided that he had to tell Nick about the nightmare, and about his fear. It'll all be over once I tell him, Greg thought to himself. Putting one foot in front of the other very slowly, Greg kept walking until a cord from a near by lamp tripped him, causing him to tumble down onto the carpet.

"Here, let me help you up," Nick offered, after seeing his friend fall.

Nick walked over to where he was and saw that Greg had skinned his elbow on the carpet.

"Ouch, that's got to be painful," Nick said, pointing to his elbow and kneeling down to get a better look at it, "Do you have something to put on that?"

Greg didn't fully hear what Nick had said. He looked around him and felt the fear grip him once again. There he was on the floor and Nick kneeling down just inches away from him, all he needed was the cage and it would be exactly like his nightmare. Nick was still talking to him, asking if he was all right because he wasn't saying anything, but Greg didn't reply. He looked at Nick for a brief moment, but he didn't see Nick's face. It was all too evident who he saw.

"That's why I decided to get revenge on the world. Make others suffer the same way I did."

"I'll never have to think about what happened to me ever again."

Greg no longer heard Nick asking if he was okay, but rather, he heard Nick saying things that Ray Danniels had said.

He closed his eyes, hoping that any second this would stop, that Nick would just get away from him. But Nick could definitely tell something was wrong with Greg and wanted to help him, completely unaware of what was going through his friend's mind.

"How does it feel to be trapped?"

Greg couldn't take it any longer, he opened his eyes and pushed Nick away from him, knocking his friend over.

"Get the hell away from me!"Greg screamed.

"Whoa. Greggo, what's wrong? I just wanted to help you with your elbow," Nick replied.

Greg stood up and picked up a mug of coffee from a near by table and poured out the coffee right onto the carpet. He waved the mug over Nick's head, threatening to hit him with it if he didn't go away.

"Get out! Leave me alone! Just leave!" Greg continued to scream.

He'd let his fear get out of hand. It had consumed him and now he wasn't acting like himself. He didn't give Nick the chance to stand up and walk away before he threw the mug at him, causing it to smash over his head.

Nick wasn't sure what was going on with his friend. He had never seen him like this. Despite the immense pain that he now felt in his head from being hit with the mug, he tried to back away so he could get away like Greg wanted.

Greg leaned over and picked up the biggest piece of broken porcelain. He continued to threaten Nick, not giving him the chance to get up.

"How does it feel to be trapped, Greg? How does it feel to be trapped?"

Greg was obviously hallucinating. What had happened to him had a greater effect on him that anyone -- including himself -- had realized.

"Greg, come on you have to let me up. I promise I'll leave... just put that down... please just put that down," Nick pleaded, afraid that if he threw it at him, the jagged edges would cut him.

Just then, there was a knock on the door. Catherine had finally arrived to start making the welcome home dinner that she'd promised.

"Oh, I'll bet that's Sara! I'll bet you're going to tell her that I'm not here!" Greg boomed.

Nick didn't have the slightest clue what his friend was talking about. Greg definitely wasn't thinking straight. He took a few steps closer to Nick, still waving the broken porcelain in his hand.

"You tell her I'm not here and then you kill me! I'm not going to let you!"

"What are you talking about Greg? Why on earth would I kill you? You're my best friend!" Nick protested, hoping that Greg would come to his senses.

"Don't act stupid Nick! I know you're little plan!" Greg exclaimed, holding the porcelain behind his head, ready to throw it.

"Whoa. I guess this is what happens when you start the party without me," Catherine said from behind Greg as she set down the grocery bags and took the piece of porcelain out of his hand.

"How'd you get in here?" Greg questioned, turning around to look at Catherine.

"Your door was open. I heard screaming and thought something was wrong."

Nick used this time to stand up while Greg was facing the other way. He didn't even stop to say anything to Catherine before he left. He figured he'd better leave while he had the chance. Going to see Greg was definitely a bad idea.

"All right. What exactly was going on here?" Catherine asked.

"I don't want to talk about it," Greg replied, sitting down in a near by chair, "Just as long as he's gone..."

Catherine was unsure of what to say to Greg. She was beginning to think that he needed to talk to a professional, and fast.

Nick quickly got into his vehicle and tried to make sense of what had happened. He was afraid to go back to his house, fearing that Greg might follow him to finish off whatever he was going to do.

The fear between them had become mutual.

He felt that the lab would be a safe place to go, so he quickly drove there, occasionally looking in the rear view mirror to see if Greg was following him. Upon arriving at the lab, he had hoped Grissom or Warrick would be there. He knew that they were working overtime on a case and hoped one of them would be there.

Once he walked inside, he found Grissom sitting in his office, reviewing a few papers.

"Nick, what happened to your head? You're bleeding," Grissom said when he got a look at Nick.

Nick didn't reply for a moment. He ran his hand across his head and then saw a few drops of red liquid on his fingers.

"I didn't realize I was bleeding."

"What happened, Nick?" Grissom repeated.

"Something's wrong with Greg. I couldn't go home because I was afraid he'd follow me."

"Nick. What happened?"

Nick then out lined everything that happened. He felt like he could confide in Grissom, even if Grissom chose not to show a lot of emotion.