Disclaimer: I do not own Castle.

She made the milk for the baby and handed it to Castle. He was sitting across the counter. "It's nice to have some help when you're taking care of a baby." He said while still holding her and feeding her. "Yeah, thanks Castle. I don't really know how to do all that stuff." She leaned closer to him with her arms resting on the counter top. "Meredith wasn't always around to take care of Alexis." He sighed to the memory. She knew his ex-wife was not the perfect mother but she didn't know she was that bad. "Don't worry, Castle, I got your back." She smiled. "Always." She sealed her promise with the word. "Always." He repeated. "So, how will we do this?" He lifted his eye brows. "You and the baby could use the guest room or you want me to stay here at night?" He grinned. She was about to speak up but her phone rang. "Beckett. Yeah we'll be there." She snapped her phone off. "Come on, Castle. They've got the suspect." She was in her detective mode. "What about the baby?" Crap. She forgot about the baby. She bit her lip. They cannot go anywhere with a baby. The media will find out and then the whole country will know. And what will her friends think? Oh no. The Captain will get furious if she finds out.

"I could call mother and tell her to babysit. I could also tell her to take some of Alexis' baby clothes." She quickly agreed. No one should find out that she received a baby. At least not yet. He handed her the baby. "What?" he asked. "I don't know how to carry a baby. I've tried to carry a toddler but they are different. Babies are smaller and more fragile." She replied.

"Carry her this way." He helped her. "I'll call mother."

It's her first time to carry a baby and it felt surreal. There's a little human being in her arms. She brushed a hand on the little girl's cheek. She's so cute. She fell asleep after Castle fed her and made her burped. "Mother got frenzied when I told her about babysitting. I need to calm her down before I could explain everything." He rolled his eyes. She raised an eyebrow at him. "Oh yeah. Eye rolling was your thing. Got it."

"So it's true." Martha approached them. Kate was on the phone. Rick handed her the baby. "Oh, she's so cute dear. What's her name?" The two looked at each other. "We haven't decided yet. We need to go. Thanks mother." He said and kissed her cheek. "Bye, baby." He waited for Kate at the door.

"… We'll be there, Ryan. Something got in the way. Yeah. Tell me everything when we get there." He heard her. She thanked Martha after she got off her phone.

They were walking towards the car. "Esposito and Ryan are interrogating the suspect. They questioned me why were we late because I never get late especially in the middle of a case." She opened her door. "What did you say?" He looked at her but she didn't look away from the road. "Something got in the way." She can still see him in the corner of her eye even though she focused herself on the road. "Are we going to tell them?" He never leaved his sight of her. "No. Not yet. Let's just finish off this case." She was back on the detective mode. He didn't say a word after that.

They walked into the bullpen and they were greeted by two grinning detectives. "Slept late last night?" Esposito teased.

"Yeah, we did." She used her bedroom voice and grinned. "We slept late this morning."The three men looked startled. "Am I right, Rick?" She bit her lip in a sexy way. His jaw dropped. " I – uh – we – um" He gulped and loosen his tie a little bit.

"We stared at the murder board until one o'clock" It's her detective voice again. The two detectives looked disappointed. "Jeez, Beckett. We thought you and Castle –"

"We what?" She glared at them and rolled her eyes.

They were saved by the bell when her phone rang. It was Lanie. "Castle, you coming?" He quickly followed her direction.

"Lanie." She called her. The ME glanced. "The killer hit her head with a blunt object. Based on the angle of the blow, I can say that you're finding a six feet murderer." Then she turned her back on them and grabbed a paper. "I found this paper in her pocket. I checked if there are prints but there were none." She handed the paper to Kate.

"I hope you liked my gift, Katherine."

They looked at each other. He took the paper. "It's the same handwriting." They both spoke.

"Do you think that the baby and this case are connected?" The ME looked confused. Did she hear that right? A baby. She didn't know much about the case but she knew that there was no baby in this case.

"I hope so. We need to send the baby here and get her DNA. This case is more complicated than we expected." She went out followed by him.

"Katherine." She stopped and they bumped with each other.

"Why did you stopped?"

She turned to face him. "You called me Katherine." She furrowed her eye brows and crossed her arms.

"I was talking about the case. The victim's name isn't Katherine." She almost forgot. "Is the killer giving you a message?"

"Let's check first if the victim knew any Katherine." She walked back to the bull pen. Something is wrong. They must've missed something. It doesn't make sense.

.

"Hello darlings!" Martha caught their attention as she made a bee line in the bullpen. She was carrying the baby in pink clothes and a bag. "So, Kate and Richard told you about the baby." She told the two detectives.

The two looked at her from their desks. "What baby?" Ryan walked towards to Martha. "Did you know about this?" He whispered to Esposito

"We didn't know anything about the baby." Esposito stood up.

Castle and Beckett walked out of the break room and saw the commotion. "You told your mother to go here?" She hissed.

"But you said – " She cut him off.

"We haven't told the guys yet, Castle!" She yelled at him. She quickly joined the group. He followed her with their coffees. "Boss, did you adopt a baby?" Ryan curiously asked. "No. We think the baby is related to the case. We need to talk to the Captain." She didn't make it clear for them.

The Captain was already at the bullpen. "Why is there a baby in my bullpen?" Her arms are crossed. "You two, in my office now!" She slammed the door.