"I don't know what you're talking about." Reid stared at her

"You can lie to me all you what, but I know the truth. Charles left you something, and I want to know what it is." Alex smiled at him.

Reid and Prentiss got up and met up with Hotch and Rossi in the interrogation room.

"What is she talking about?" Hotch asked.

"There was an envelope with my name on it in Charles' home. Inside were handwritten letters to him." Reid reported.

"How would she know about these letters?" Rossi asked.

"I have no idea." Reid shrugged his shoulders.

"Who were the letters from?" Hotch asked with his arms folded across his chest.

"Two were from me, one from Alex, and one from Hugh. But they were just letters about catching up, what we were doing at the time. There wasn't anything case related."

"What were yours about?"

"One was during a trip home when I visited my mom. It didn't have any details that Alex didn't already know. The other was on a trip I took to London."

Rossi looked to Prentiss and mouthed "London?" She shrugged her shoulders in return.

"Do you foresee any issues with her getting a hold of this information?" Hotch tilted his head.

Reid thought and scrolled through each paper in his head. "No, I don't see anything in the letters that would be useful to her."

"Is there any possibility that Sullivan was working with Alex?" Hotch questioned.

"There is no way." Reid was adamant. "He was just as shocked as me. We were together when she was kidnapped by Knight, we were both worried about her."

Hotch nodded. "Okay, go ahead and give them to her. But I want you to withhold one of them."

Reid left to get the copies. He put the thumb drive into the computer, pulled up the documents then pressed print.

Reid ran to the backside of the mansion where Knight escaped with Alex. But there was no trace of which direction they went it.

"Any sign of her?" Charles asked as he ran towards Reid. He was still in his valet uniform. His face was dirty from the explosion.

"No, I have no idea where they could have gone."

"They couldn't have gone too far. There is nothing but woods out there. The nearest town isn't for miles." Charles turned around in a circle, still not seeing any possible place where they could have gone.

Just then they heard a familiar noise. They looked to see a helicopter rising above the tree line a couple miles away.

"Come with me!" Charles yelled as he went running to the other side of the house. He went directly to a row of motorcycles. "They were for the security guards."

They each got on top of one and road off attempting to catch up to the helicopter. The two agents were splattered with debris by the time they caught up to the get-away vehicle. The helicopter landed by a private dock then quickly took off. A boat sped off and was already a league away once Reid and Sullivan approached the water.

"There is no way we would be able to swim that and catch up." Reid announced.

"I just hope Alex is okay." Charles was concerned.

"I hope so too." Reid tapped his friend on the shoulder. "Let's go back and report the boat to Parker. He might be able to track them."

"Are you okay, Spence? JJ asked as she approached her zoned-out friend.

"Yes, I am okay." He wasn't sure how to respond.

"Look, I'm just going to come right out and say it… Why couldn't you tell us?" She looked hurt.

"I wasn't allowed to. I wasn't trying to keep things from you, but it was what I was supposed to do."

"I know, I get that. I do. But Spence, you haven't been acting like yourself. Or have you? I don't know anymore." She let out a sigh. "I'm just worried about my friend."

"Don't worry, JJ. I'm okay." He then rushed out of the room.

She was left alone feeling frustrated. "And you keep doing that." She said to herself.

Reid headed toward Hotch with the letters in hand. Hotch read over them. "I don't know why she would want these."

"Unless she is trying to divert our attention." Rossi suggested.

Reid and Prentiss returned to Alex who was patiently seated at the table, waiting for them. He handover the folder with the information she asked for.

She looked over them and smiled. "I think you forgot something."

"Oh yeah, what's that?" Reid asked.

"The other letter." She stared at him.

Reid leaned in. "That is to keep you honest."

She nodded. "Okay, I will go with that." She leaned back in her chair. "I think I know where Knight would go. But I am not certain. He owns a property in Hamilton, New York. He has an estate in the middle of miles of undeveloped landscape."

"How do you know this?" Prentiss asked.

"I've been there a few times. It's heavily guarded. He can be paranoid and would probably set booby-traps if he knew someone was coming."

The agents went back into the observation room. They were both surprised to see Parker standing next to Hotch.

"I have all my agents at the compound he has in Joseph Dawson's name. If he is there, we will take him into custody and we won't need her help anymore." Parker announced. He then answered his ringing phone. "What? What are you talking about?" He listened and was visibly agitated. "Okay, thank you." Then hung up.

"What's wrong?" Reid knew that it was something serious.

Parker stared off into nothingness while processing what he just heard. He then looked up to the group. "The compound was rigged to explode. As soon as the agents entered, the entire place went up. There weren't any survivors." He moved toward the window to look at Alex.

"Alex set us up." Rossi concluded. "She was the one that gave us that information."

Reid charged into the room. He then flipped over the metal chair. "I am tired of your games and your self-righteous attitude. Yes, you had a shitty childhood. But that doesn't mean that you are owed anything, especially not from me. Look me in eye and tell me the truth."

Alex was in shock over Reid's anger. "The truth about what?"

"Did you set us up?" He demanded an answer.

"Set you up? What are you talking about?" She was genuinely confused.

"The compound under Knight's alias that you gave us was set up to explode. All of the agents died. Is that because of you?" Reid pointed his finger in her face.

"Of course not. I am trying to help you, Spencer! The enemy is still out there." She pointed to the wall in anger.

Parker received another phone call and gave several yes answers. He then disconnected the call. He stood before Hotch. "I've been authorized to release Alex Marcus into the FBI's custody to assist with this case."