When Flack arrived at Rebecca's flat, he walked with her upstairs and saw she was moving methodically. "You never told me how you got such a fancy place. No offence I know Hawkes lives a few floors up from you," he began and she glanced at him before opening her door and as he walked in she locked the door behind them. "Going to answer me?"

"I got to got to school for 8 years almost. Also am paying to earn two Masters. Please use your brain and figure out where I got the money," she answered. He looked at her shocked and she chuckled humorlessly before looking at him. "You're not the first. You won't be the last either. Just know that I don't talk about it. Leave it at inheritance." She packed up her clothes into boxes and labeled them by seasons. "Did Mac say when I have to be over to his place by?"

"No. But because he and Stella are a thing. You do need to be ready to address them appropriately. Mac, especially," Flack reminded her. She nodded knowing what Flack was hinting at and as she laid on her couch she heard a knock and grabbed a knife and slipped over to the door and checked the peephole to see Mac and Stella.

"Would you two call and warn me?" She opened the door and as soon as they got in she closed and locked it again. "Not exactly the friendliest floor." Mac pointed to her knife and she chuckled putting it onto the counter and grabbing a bag and a lock.

"As demonstrated by the knife greeting we got," Stella answered with a laugh and she stuck her tongue out before putting away all the knives. "This looks like more than just your average cutlery."

"Hide the bad with the good," she dismissed. As she locked away all the knives and checked for anything dangerous she grabbed a gas mask and slipped it on her face and grabbed a bowl and quickly tossed it out the window. "Dumpster just below my window. Nobody else has a window there so no worries about cranial damage. I just had to get rid of that."

"What was it?"

"I've had my fair share of home invasions. That was a little trap I made. Don't feel like it going off while I'm away and then having to clean it up." Mac looked at her and she smirked at him. "I use chemical knowledge for protection too. No it wasn't toxic but it would certainly make them want to leave quickly."

"Bad odor."

"Very bad," she chuckled and then hid all her pictures. "I don't trust that this mission couldn't go south at any point. So I'm trying to hide anything that might blow my cover," she explained as Flack looked at her. Mac smirked and then helped her jam the closet doors shut. As she was preparing to head out she grabbed the key she taped to the bottom of a drawer. "Flack, you said Hawkes lives upstairs?"

"Yeah why?" She tossed him the key. "What's this?"

"Spare key to my apartment. That way I know someone from the Crime Lab has it," she responded. He nodded and as he went upstairs, Mac walked her back to her room and made sure she packed 3 suitcases full of clothes."

"That should do you. Then we can make excuses to go buy clothes if it doesn't," he added thoughtfully and she nodded. As they walked out, Mac and Stella made sure that the door was locked and as they walked to Mac's car, they made certain she was in and drove off. Mac had already prepared rules and consequences for Rebecca Claire Conrad-Taylor, but he suspected he'd need to make some for Rebecca Manx as well. Stella and him had to agree on things. Rebecca was the youngest and her inexperience made her resort to measures that were primitive in being a detective.

When they arrived, Mac made sure she was following Stella and as they walked into the apartment, Stella smiled as she took the bags. "You and Mac should talk for a bit. I'll be out soon," she informed and as Stella left, Mac sat and she looked out the window.

"I still think we should be precautionary. Just in case someone tries to figure you out. Calling me dad around the house and in public until the job is over. Stella can still be Stella as the story we made up, it states you don't like her."

"Which I'd have to question myself on because who can't like Stella?" Mac chuckled at that knowing that both Danny and her saw in Stella something that wasn't a boss. Stella had affectionately been called mom in a joke by Danny. But Stella could see how in ways, she had become like a mother to Rebecca as it was clear, she thrived off the praise Stella gave her when she made huge breaks in cases. Mac even tried to give the odd smile in Rebecca's direction as he noticed she thrived once she was assured people were okay with how she was getting her answers.

"Do we have anything to do with Colic?" She wanted to know how soon she had to get into character with Mac and even the man himself had to wince. He knew she would have to get to work pretty quickly and that meant being ready for Hawkes to be present.

"Not until tomorrow. 4 PM is your first appointment with him," he informed and then looked at her. "But even with anyone from the lab, you have to remain in character. Just so then if any of the apartment neighbors hear us, they don't realize you're undercover. It has to be so foolproof that the psychiatrist has no idea." She nodded and he smirked at her. "Smart move." She smirked and then as she glanced out the window to see the scenery, her head leaned against it a little heavier. Mac finally noticed the signs that she was falling asleep against the window. "What time did you leave the lab?"

"I worked a triple last night," she softly responded and Mac smiled knowing she was falling asleep but he then quickly did the math. She openly confessed to working a triple and then had returned to work for her normal shift. "Couple people had kids they needed to get back to. I have no life so," she began before chuckling and sleepily smiling. Mac had to chuckle at that and looked at her face to see she was almost heavily leaned against the pillar of the window.

"You weren't scheduled for a triple," he noted and she nodded before he caught her as her legs gave out from under her. Stella heard the noise and saw Rebecca being laid on the ground by Mac and she ran over to them concerned. "Somebody covered two shifts in a row. Then went home and slept for maybe 3 hours and returned for her own shift. She's exhausted," he answered picking her up and carrying her to a room that he knew would easily become her's.

"She worked two shifts, her own, went home and rested and then returned?" Stella couldn't believe it. Mac nodded and Stella looked at Rebecca and saw the exhaustion finally in her face. "She shouldn't have worked a triple. Not at her age and not with what she's working for."

"No. She's working for her Masters Degree in both Forensic Science and Criminal Justice. These hours undercover will apply to her Masters Degree in Criminal Justice. But she needs to get her rest," he responded and as he was sure she was asleep, he plugged in a nightlight not sure if she needed one, but he noticed it was hidden in her bedroom so he snuck it out. He would have asked her, but he knew that was asking for trouble with Rebecca. She clearly held a lot of her life away from them with a 6 foot pole.

By the time dinner was ready, Mac went to go wake Rebecca as he didn't care if she went to bed again after, but he wanted her eating. He knocked and as he opened the door he saw the bed was empty and he ran to check the window and saw it was still locked shut. He knocked on the bathroom door and heard a quick sound that he could identify as Rebecca acknowledging him. "Dinner's ready."

"I'll be there in a minute," she promised. He nodded and then walked into the kitchen where Stella was plating a salad and baked chicken. She was about to say something to Mac until she glanced and then gasped as she saw Rebecca. "What?" Mac glanced and then stumbled back at the change.

"Rebecca Manx what the hell? What did you do to your hair?"

"I'm offended dad. You don't recognize your own kid? Only able to identify your seemed prized prodigy? Isn't she supposed to be back at your lab? Working? Why'd she be in the house you got after moving on from mom?" Both he and Stella had to snicker at the little outburst. She was playing the part of Mac's declared incompetent daughter quite well. She even had the snark in her voice whenever she had to mention Stella and the new apartment that she read from the dossier. He then wrote out a name on a piece of sticky note and she nodded knowing what was being asked.

"Sorry Becka," he apologized and as he looked at her hair he realized. "You dyed your hair?"

"Bleached it and purposely failed in some spots," she noted and Mac chuckled looking at them. "I would assume your incompetent daughter who can't care for herself would make some pretty obvious mistakes when it comes to doing hair."

"Please tell me it needs cutting," Stella teased and she nodded as soon as she heard laughing.

"Yeah don't worry my hair needs a cut down anyways," she chuckled looking at Stella. Mac then heard the door and he looked at the two of them and Rebecca nodded pretending she was offended by Stella's mere presence. Walking in was Hawkes and Flack.

"Still stay on assignment. We don't need Flack's radio picking up anything," Mac warned her as he walked back in and she nodded before turning away from him. Flack looked shocked and Mac gave him a knowing glance and waited.

Stella decided to see how far she was willing to go and went to go touch Rebecca's shoulder who instantly slapped Stella's hand away. "Rebecca," Stella exclaimed in surprise and Mac glanced to see what happened. "Apparently touching her shoulder is off limits."

"Rebecca Claire," Mac began sternly and Hawkes looked impressed. If they didn't realize who Rebecca really was, both he and Rebecca really did look like father and daughter. "You apologize to Stella."

"Not over my dead body," she snapped. Stella bit back a retort knowing that Rebecca was just trying to get herself into the act she had to, but she could hear it. There was a hidden secret within her voice and it was pure inner rage.

Mac firmly took Rebecca's arm and Flack watched as he took her to a corner but he knew he couldn't hear anything. "You put your nose in this corner and stay here until I get you out," he warned before walking back to the table and seeing Hawkes chuckle. "Shush."

"She really has the whole being a brat thing down," Flack noted and Mac chuckled. "I wasn't kidding Mac. I will look out for her like I do Danny. She's like a sister to me, Hawkes and the others," Flack assured. Mac nodded knowing he'd need to have someone looking out for her.

After about 10 minutes, Mac walked over to her and looked at her. "Remember, you act a partial brat. Just not fully around here. I will have a rule sheet set up for you. As you are noted to be incompetent by the documents we have," he warned.

"I know. But I'm trying to get used to both roles. Part of me being a detective and the other undercover," he responded. Mac nodded knowing what she was getting at silently. She wasn't sure how to proceed as they never taught a detective what to do. She didn't really even have time to learn what she would have been like.

"The brat part of you shows up when in public. The other times, in private, you're still you," he warned and she nodded as they went to sit back down. Nobody expected an apology, and Mac wasn't forcing it. Flack had to admit seeing Rebecca around Stella and Mac without her badge was nice. She almost seemed like she was only entering the world of adults like that.

"Not used to the whole undercover thing are you?" Hawkes could tell and she shook her head at him. "It's apparent. Also I did get your apartment key so nobody can get in without me knowing." She nodded knowing that at least that much fear was gone. Hawkes did have the spare key. After everyone ate, Mac and Rebecca were clearing the table and he noticed she almost fell. "Did you sleep at all?"

"Not really. Slept for 10 minutes," she answered and Mac smirked knowing the truth. Rebecca was clearly proving to be a workaholic much like him and Stella. As she finished washing the last dish and placing it in the drying rack she yawned and shook her head.

"Go to bed," he answered and she swatted at his hand and shook her head. "You are going out in the morning so yes. Get ready for bed and go to sleep," he answered and she shrugged before grabbing the counter. Stella luckily had went to go get ready for bed herself as they all were exhausted. "You worked a triple, came back in this morning, snagged some leads, briefed the public and now are undercover. I think that's enough to make a normal person faint." She was about to argue before Mac helped her walk back to her room. "I expect to see you changed and at least in your bed in 5," he warned as he went to go at least get his teeth brushed and change into his pajamas bottoms.

He saw Stella looking at him as he changed. "How's she taking to the whole new rules thing?" Mac had to admit he hadn't told her yet, but Stella could tell. "How bad was she while you two were doing the dishes from dinner?"

"She almost passed out again. Seems she barely slept once I got her into her bed the first time," Mac answered and Stella had to chuckle at that. "Don't start on me Stella," he began and Stella chuckled. He walked back to Rebecca's room to see she was in her bed but she was looking out the window. "Alright you. Get some sleep." She shook her head and he chuckled looking at her. "You do need to go into town with Flack in the morning."

"I'll oversleep."

"You won't. Incompetent means you don't get much leeway," he reminded. She groaned and laid down and Mac noted she was fighting with the blanket to get under it. He walked over and helped her making a red tinge appear on her cheeks and he smiled running a hand through her hair. "Get some sleep to try and catch up from that Triple and then your normal shift." She nodded and after a few minutes he smiled as he went to his own room and laid with Stella.

"She asleep?"

"Trying to sleep at least," he answered. As he began to fall asleep, he hoped the same thing that he knew the entire team was hoping. Rebecca wasn't exposed to the potential cause of the suicides for too long. That she could expose him quickly.