Climbing out of his car, he stared at the crowds of people surrounding the building, clearly seeing Ryan, Esposito and Lanie as he ran over as panic covered his face, noticing how the one person he wanted to see wasn't there.

"What's going on? Where's Kate?" he asked as Lanie grabbed his hand, stopping from running any further towards the building. "Lanie where's Kate?" he asked as he continued to stare at the closed entrance, his mind imagining every situation probable.

"Castle, a man walked into the building earlier and he's taken her hostage, apparently someone the boys arrested was a relative and he's trying to get him out by taking evidence, however the plan didn't work because Kate's there" she explained as he stared at her, shock and worry filling his mind as he looked up at the building. She was in there. His Kate was in there. "Rick apparently they were both okay when we last had contact but no one's allowed into the building yet, we have to get the right teams here".

"I'm sorry but that's my fiancée and baby in there, I'm not waiting outside for people to turn up while not knowing whether their alive or dead" he announced as he pushed her gently out of the way and ran into the building, shouts following him as the doors opened once more and he turned to see Ryan and Esposito standing there with their guns tightly grasped in their hands.

"We're not letting you just run in without back up, you'll get yourself killed and then what will Beckett do?" Ryan hissed at him as he sighed and slowly nodded. He couldn't do this without them. He couldn't get Kate out without them and he knew that. Slipping up the stairs, he counted every step he took desperately wanting her to be safe in his arms again, desperately wanting to hold her and protect her. Reaching the door to the precinct, he slowly opened it to see Kate sat in the break room; her arms wrapped around her stomach as a man paced the room slowly, the gun clear in his hand.

"Castle, you need to get out of the way" Esposito mumbled as he shook his head, the door slamming quickly causing them to look around to see the man now holding Kate tightly, the gun pressed against her stomach. Watching as Castle began to get up from the floor; both men quickly grabbed him and stared at him, shaking their heads to stop him from going any further. "If you want her out of there safe Castle, stay here" he ordered as Rick slowly nodded, knowing this was the right time to back down. He just wanted Kate. He wanted her back in his arms where he knew she was safe. Pacing up and down the corridor slowly, he listened to the silence from inside the room, desperately wanting to hold her in his arms again, to love her and refuse to let her out of his sight once more. "Castle get in here" Esposito called before he slowly slipped into the room to see the man still holding Kate against him, the gun pressed against her stomach.

"Rick" she whispered, tears trickling down her cheeks as he smiled and nodded, desperately trying not to cry himself. He wanted to be strong because she was being weak,

"You're going to be fine Kate, I promise, you both are" he comforted as she nodded, knowing if anyone could save her it would be him.

"Look, it's their first kid and you're threating to kill it and her as well, do you know what that's going to do to him?" Esposito asked as the man continued to stare at him. "You didn't come here to kill or hurt anyone, you came here to protect your brother" he announced as he slowly began to loosen his grip of Kate.

"He's innocent, he didn't murder that kid it was an accident, he never meant to do it" the man announced, his voice strong and yet weak at the same time. His weakness not mattering to Rick who just wanted to hit him as hard as he could for threating his fiancée and child. "The kid fell and he didn't know what to do, if he'd called the police they'd have arrested him for murder".

"Okay, then help me prove that, we can make your brothers sentence a lot shorter if you help me" Esposito insisted as he stared at him. "I promise, we can get your brother off a murder charge and onto something smaller, just let her go she's done nothing wrong here, she's not even supposed to be in" he declared as the man slowly nodded. Moving his hands away from her, he stared as she ran off, flinging her arms around Rick's neck as he held her close to him, his eyes shutting to stop the tears from flowing down his face.

"I thought I'd lost you" he whispered as he touched her cheeks to make sure she was there, to make sure he wasn't imagining her being back in his arms. "I thought you were gone Kate, I thought I'd lost you both".

"I'm sorry, I won't do it again" she mumbled as she leant forward and quickly kissed him, his arms remaining around her. "Esposito let's go" she said as the man quickly shook his head and turned to look at her.

"I promised Kate, I'm going to at least listen to what he has to say, if he feels so strongly about it there must be something" he explained as she nodded and smiled before hugging him quickly.

"Thank you" she mumbled into his ear before moving away and staring. "I'm sending Ryan in though, he can wait with you" she commented before walking towards the door, quickly clinging onto Rick's hand for protection.

XOXOXOXO

Entering the apartment, he stared at the woman who was still clinging onto his hand and hadn't let go since they'd left the precinct together. Wrapping her arms around his neck, she stood in his arms as her head rested on his chest, his chin slowly touching her head as she sighed.

"If I lost you Kate, I don't know what I would have done" he whispered as she nodded slowly. "You've been my everything for years now, I can't imagine my life without you there with me" he mumbled before tears started to trickle down his cheeks, the sound of his sobs causing her to look up and sigh as she wiped each tear away with her thumb. "Never make me feel like that again Kate because honestly, it kills me".

"I'll try" she mumbled as he nodded and kissed her slowly, his hands running down her back slowly. "I'm tired now" she laughed as he rolled his eyes and kissed her forehead, lifting her into his arms quickly. "Soon you're not going to be able to do that Rick, I'll be too heavy, I'll be an elephant".

"You'll never be too heavy for me to carry you" he laughed as she nodded and kissed him slowly as he walked towards the bedroom holding her in his arms as she sighed. "Anyway I love elephants" he laughed as she rolled her eyes and hit his head gently, a small appearing on his face as he entered the room they were destined for.