Greg walked with Alison up to the house.

"What do you think." He said, looking over at her.

"About what." Greg gestured around them.

"About this being your first case here." Alison raised her eyebrow.

"I've worked out of the Las Vegas office before." Greg rolled his eyes.

"That's not what I meant."

"Ethan seems to like it here. Maybe we could make it perinate." Greg stopped at that. Alison was joking. He could tell from the inflection in her voice. But based on the expression on her face, she was going more serious. Greg walked over to her.

"Hey, we're going to work here for as long as we need. If nothing happens, then we can talk about it. I just don't want you running." Alison forced a smile on her face.

"Deal." The two walked up to the house's front porch, where Nick was standing.

"Guy, I don't think that we're getting in this way." He said, staring at the pile of garbage that blocked their path.

"Mitch and Akers said there's a way in around back," Greg said, pointing his flashlight. Nick shook his head.

"I hate cases like this." Alison tilted her head.

"Like what? We haven't even found anything yet." Nick laughed.

"This is a hoarding house. There's bound to be at least something." Nick looked at Greg. "Do you know if Mitch and Akers went into the house?" Greg shook his head.

"No, Eyeballs only. They didn't want to disturb a potential crime scene." The three CSI's made their way to the back of the house.

"Have you three gotten settled yet," Nick asked.

"Yeah, Greg wasn't kidding when he said that rentals were crazy here. We have a garage and backyard. Ethan won't want to leave."

"That's because you two live in New York, where you can hardly rent a postcard." Greg used his flashlight to scan the side of the house.

"The victim is probably the homeowner, Martha Santiago." He said, turning the conversation back to the reason they were here.

"Does she live alone?" Nick asked.

"As far as we know. The county declared this place a risk to public safety. They ordered a forced clean-out. It's supposed to happen by next Friday." Alison shook her head.

"Yeah, I think she's going to miss that deadline." They reached the back door, where there was also a lit of trash but a slight gap to allow them to enter.

"Watch your case." Nick said as he entered the house. Greg looked down at Alison.

"Do you want to go first?" Alison smiled.

"Why, so you can be closer to the exit."

"No, so I can get help it this house starts taking prisoners." Alison rolled her eyes, heading into the house. Greg put on his mask like the others heading into the house. Even though the mask, Greg had to fight the urge to gag. Something was defiantly dead in this house.

"So, how do you guys what to do this," Nick asked as they stood in the small opening.

"I think the only option is to follow the trails left for us," Alison said.

"Great, be sure to call out as you go. I don't want anyone getting lost or trapped." Greg said as he pulled his camera out. The three want their separate ways of taking pictures as they go. They were at it only a few minutes when Nick called out.

"Guys, I think I just became evidence." Greg and Alison looked over in his direction. He had stepped on a mostly decayed body.

"Well, I guess you just found our host."

Alison was taking pictures of the dead body. There was a crash nearby that caused her to jump.

"Hello." She called it.

"It's me." She smiled at the sound of Greg's voice. He and Nick had gone out after the body was found to update.

"What's the news." She asked. "I feel like I've been in here for hours.

"I asked the coroner to hold off until we cleared a path." Alison shook her head.

"Good luck with that.

Where's Nick?"

"He's changing his shoes. Where are you." Alison lowered her camera.

"You were in here."

"Yeah, but I can't find the path. I'm surrounded by bubble wrap." She headed the distinct popping of the bubble wrap.

"Hang a right at the sewing machine and a left at the Mason jars."

"Ally, there are about 6 sewing machines in this area alone." Alison pulled out her flashlight.

"Just follow the North Star." Greg came into view. He shook his head, looking down at the body.

"David is going to have fun with this. I mean, it looks like she melted right into the rug." Alison took another picture.

"Oh, so that's what that is."

"What are you doing in my house?" A woman called out. Alison again jumped, almost knocking a pile of books over if Greg hadn't stopped it. "I have the paper you gave me." The voice continued.

"Mrs. Santiago?" Alison called out. "Is that you?"

"Don't make me call the police."

"Ma'am, we are the police," Greg called out.

"Dr. Prescott, you promised I'd have until next week." Alison searched for the woman with her flashlight.

"Ma'am, I'm not Dr. Prescott. My name is Alison Sanders. I'm with the crime lab." Greg nodded.

"You have a decomposing body here," Greg added.

"Would you mind stepping out? We'd like to ask you a few questions."

"Okay, I'm coming." A toaster that had been still fallen to the floor next to them. Greg looked at Alison.

"Hold on. Uh…why don't you stay there? I'm going to come to you." She said as she handed Greg her camera. Turning, she slowly made her way over in the direction of the voice that had been talking about earlier. Rounding a corner, she found a woman sitting in a chair holding up a piece of paper.

"Oh, you're not going to take a picture of me, are you?" Mrs. Santiago asked. Alison strolled up to her.

"Ma'am, is there anyone else in the house with you?"

"My whole life is in this house."

"I mean, is there anyone else living in the house with you right now." Mrs. Santiago stood up.

"Ghosts." Alison pressed her lips together.

"Uh, Mrs. Santiago, I need you to take a look at something."

"If I do, will you leave?"

"I can't promise you that. Please, come with me. It's essential." Alison said, holding out her hand. Mrs. Santiago looked at it before slowly taking it. The two of them came around the corner where Nick had joined Greg. They were bagging up the items around the body.

"That's Diana's dress." Mrs. Santiago called out. "That's my daughter." Alison grabbed the woman as she moved to get closer to the body.

"Okay, we're going to take excellent care of her," Mrs. Santiago's eyes looked on Nick, who was holding a pillow.

"Don't touch that. Put it down!" She started to scream at him. "You need to stop that, right now." Alison motioned over Nick to drop the pillow, and he did. Mrs. Santiago's attention shifted back to her daughter.

"Ma'am, why don't we step outside, okay?" Alison said as she led the woman away.

Greg added another item to his growing pile of evidence bags.

"Ally, have you heard anything about the cause of death?" He asked as she reentered the main crime scene area.

"Yeah, a single blow to the head. He can't say if it was deliberate or not. But chances are the murder weapon is still in this house." Greg picked up a picture. It looked to be a happy family.

"Mrs. Santiago has more than one child." Alison looked over at him.

"Yeah, recodes say that she had three children. They're trying to track down the other two right now." Greg shook his head.

"I can't believe that she didn't even notice. Her daughter was lying dead in her house for almost a week." Alison didn't say anything. Greg looked up and found her staring down at her feet. He stood up. "What is it."

"I have a blood drop." She said, not looking up. Greg walked over to her.

"Let's see where it goes." The two of them followed the trail down a hallway.

"It ends here." Greg pulled out a black light and luminal. They both stopped at the significant marks on the ground.

"They said it was only a single blow to the head right," Greg asked.

"Yeah, but that might not be blood," Alison said. She reached into her bag, handing Greg a bottle of hydergine peroxide. "Try this." He grabbed it, and they continued to follow the trail of blood. They entered a room.

"Someone tried to clean up in here," Greg said.

"You know the court-ordered Mrs. Santiago to clean this place up. Maybe Diana came over to help." Alison suggested.

"Let's start working in here," Greg said, taking a picture of the blood. He stopped looking at a stack of newspapers. "You said that the mark on Diana's head looked like a barcode." Alison walked over to him.

"Yeah." Greg pointed at the stack.

"I think we found our murder weapon."

"What's that?" Greg looked over at Alison. Her eyes were locked on something. He spotted a round white object pocking out from under some things following her gaze. He bent down to get a better look. Bumping into another stack of items. A gun went off, and he ducked, looking over at Alison.

"Are you alright?"

She looked around then pointed to the gun that had been knocked over.

"Yeah, let me clear it first." Greg turned back to the object that he had been looking at.

"Ally."

"Yeah."

"We go another body."

Alison walked over to Greg, who was taking a sample from the carpet.

"So let me get this straight. We found one decomposing body and a skeleton in this house, and Nick found 3 skeletons in the backyard." She said, looking around the room.

"Yes, and one immaculately clean bedroom belonging to the one daughter we still haven't tracked down." Alison looked back at the hallway.

"Why did Mrs. Santiago feel the need to move this daughters' things outside of her room. If her psychiatrist is right, family is most important." Greg stood up, walking over to her.

"Maybe her son killed her along with the other victims." Alison tilted her head.

"In a way keeping both her kids close." She opened one of the boxes. "Cap and gown from college graduation." She moved further away from the room, opening another. "Prom dress."

"So, it seems like we go further back in time the further away from the room we get," Greg said. Alison nodded, following the trail of containers. They entered a small room where more of the containers lined the walls.

"Here, let's see what stage of life these are." She said, taking one of the boxes off the top. She handed the box to Greg. She turned back and froze. Her eyes fixed on the metal. She felt Greg walk up next to her sensing her shift in demeanor. Here was a girl handcuffed to a mettle bed. The girl sat up, and Alison jerked back. Greg steadied her while holding his other hand up. The girl was gaged.

"Alison, will you go get Nick and have him call this in." Alison didn't hesitate to run out of the room. She had gotten good at navigating the house and was out of it shortly. Nick was still in the backyard cleaning the skeletons.

"What's going on." He asks. The smile that had been on his face vanished. "Ally, what's up."

"We found the other daughter." Alison took a deep breath. "Handcuffed to a bed."

Greg walked into Nick's office.

"How's it going?" Greg asked, sitting down across from him.

"I just can't get over the fact that the mother was holding her daughter in that house."

"Because she found out that the daughter was killing those boys. She was doing it to protect her daughter from herself." Nick shook his head.

"Still is hard to believe she kept all those things." Greg ran his hand through his hair.

"Sometimes people have a hard time letting things go. I'm just glad that we found the daughter. Both of them." Nick looked up at him.

"Why didn't you just radio me that you found her." Greg tilted his head. "You sent Alison out to tell me." Greg flinched slightly.

"I wanted her out of the room." Nick met his gaze.

"I know that she has a past you've told me as much. How bad is it." Greg let out a deep breath.

"Bad enough that we had to rent our house under a fake name."