Genre: Drama, Crime, Romance, Family, Humor

Rating: M for sexual situations and language

Disclaimer: I do not own the characters featured on the show Castle, they belong to the creator of the show, ABC, and the others who do own them.

A/N #1: It was really unexpected getting feedback, wasn't sure if I would, so I want to say thank you for that straight away! TORONTOSUN (It was great to see you liked the fact that Castle and Beckett could calm down everyone after what happened there, couldn't see them not trying to keep control of the situation. And not surprised that you commented on the ending, definitely not good of course!) and vetgirlmx (I had to laugh a bit at what you said at first with expecting it to happen, though just because I expecting you to have that reaction. And you're right; Beckett did break the rule so it was a possibility. Not surprised you think Beckett may make it out okay or that you mentioned it being a close call again. It made me smile to see your comment about the couples being thickheaded but you make a great point with it, they are since it's hard to forget there's a killer going around. I was glad you could see what I meant about the liquor, not the best situation to have that around but bad too to keep the high strung couples from it if they started asking for it. I wasn't surprised to see you mentioning that they could focus on the killer and not the guests since they cleared them. Really happy to see that you can't wait to see how Beckett fares and now you don't need to wait for it to see!). Thanks so much for the reviews, really loved seeing them and reading them and I appreciate you taking the time out to write them to send them to me!

A/N #2: The title of this chapter is a lyric from the song Dead Man's Party by the band Oingo Boingo, from their album of the same name.

Of What You Can't See

Walking into the doorway of the parlor Castle saw that John Kemp was speaking with his wife and another guest. As soon as he spotted them he felt a sense of unease that he'd been trying to push back when he had left the kitchen with his and Beckett's coffee to discover that she hadn't returned yet.

"Rick?" David asked, walking over when he'd noticed the man standing there. "You alright?"

"Yeah I'm fine," Castle said quickly, not wanting to show his concern yet. "Did you see where Kate went after she talked to John?"

"When?" the man asked in a little confusion.

"Just now," Castle said, realizing that he needed to be worried with that response. "We were in the dining room and I went to make some coffee while she talked with him."

"She was never here," David said, looking at Rebecca who was walking up to them. "You didn't see her did you Becca?"

"Not since she said you two would be in the dining room," Rebecca replied. "I'm sure she just went up to your room for something."

"You should check," David said as an incredulous look appeared on their friend's face. "She'll be up there."

"Go," Rebecca said gently but a little firmly. "You'll probably meet her on the way down."

"Probably," Castle said, though he wasn't really all that convinced. He turned and then headed to the entry to start going up, calling, "Kate are you there?" He stopped at the landing saying, "I don't really want to keep going so let me know now." He waited for a while to make absolutely sure before he ran up the rest of the way.

"Kate?" Castle said as he then began to rush down to the other end of the hall. He tried the doors as he went, unknowingly mimicking what his wife had done earlier. He paused at their room thinking she might at least be there. But after pounding on the door he had no response and he grit his teeth together before he was hurrying down past the rest of the rooms.

"Damn it," he swore bitterly as he came to the window at the other end and had nothing to show for his search except the fact he was out of breath. He ran back and down the stairs, calling for John until the man met him out in the hall.

"What's wrong?" the owner asked, a little startled seeing him.

"Have you seen my wife?" Castle asked. "Since after we left for the dining room?"

"No, why?" John asked.

"Did someone kill her?" a woman said in a slightly panicked tone of voice. "The detective?"

"Then she's missing," Castle said. He didn't wait for a response from anyone and ran back to the living room where at the doorway to the family room where the Reids and Plumeys were and asked them, "Have you heard anything at all from upstairs?"

"There was a knocking sound but we just thought it was Kate walking around up there," Rowena said, sharing a look with her husband.

"You never heard her coming back downstairs?" Castle asked. When the two shook their heads he looked back at the Plumeys and when they shook their heads as well, ran back to the parlor again. "Kemp," he said, his concern making his voice sharper than he meant it to be.

"You didn't find her?" John asked, sounding anxious himself when he could tell from the man's face the answer to his question.

"She had the skeleton key to the rooms," Castle said. "Tell me you have another one."

"We do," John said, nodding. He turned to his wife who was behind him and took the key that she held out to him.

Not bothering to ask anyone to help him Castle went back to the staircase before he heard someone behind him. "David-" he started to say.

"I'm going with you," the man replied firmly. "You need some help… in case."

Trying not to react to that Castle curtly nodded to him before they started up the stairs with him in the lead. At that point he opened the first door flinging it open and letting David run inside before he went down to the next one and went through himself. He and his friend went down the hall and past their own rooms before they were almost at the end of the hall. He became a little alarmed when they were nearing the last three of the rooms and he opened the two before the last and he reached the very last one first, letting David look through the others.

Castle rushed into the room, pausing to turn on the lights, and then stopped when he saw the bed. His wife was lying there, almost looking like she was asleep though the shoe on her right foot was only hanging on it by the strap. "Kate!" he said in relief, almost running to her as he was able to discern from what he could see of her that she looked to be okay.

"Is she alright?" David asked, coming inside behind him. He was startled when he heard someone behind himself and turned to step out into the hall ready to hold them back in case it was the killer, when he saw that it was in fact his wife. "What is it?" he asked as she neared.

"I got this from Mrs. Kemp, just in case," Rebecca said as she held a first aid kit. "Is she okay?"

"Rick?" Beckett asked, her voice sounding confused as at that moment she opened her eyes to find her husband in front of her, the backs of his fingers caressing her cheek. "What happened?" she said as she sat up though he tried to stop her.

"You don't remember?" Castle asked, watching her closely to make sure that she was okay. "You said you were going to speak with John and then come back to the dining room with me to have some coffee but you never did."

"No I didn't even talk with John either," Beckett murmured, looking at the Fosters who were watching them.

"Will you be okay on your own?" David asked, feeling as if he and Rebecca were intruding.

"Yeah go ahead and tell John I found her and check to make sure that everyone is where they're supposed to be right now," Castle replied. "And she's fine. We'll be down… maybe." When they were alone he turned to her and said, "What happened my love?"

"I heard something upstairs, which I shouldn't have since we cleared the second floor," Beckett began, recalling then. "And then I went to the bottom of the staircase and saw a figure there."

"In black," Castle said.

"No," Beckett replied as she shook her head no. "In white, I thought it was Simone going up to see her husband again."

Since she was looking at him questioningly Castle knew what she wasn't saying and told her, "When I went to the parlor for looking for you I saw her there, a little on her own to the side of the room."

"Of course," Beckett sighed. "I went up to the… up here," she corrected herself. "And I tried all the doors but none of them were open so I went all the way to the end of the hall until I started to turn to go back. But as soon as I did I was grabbed from behind and I tried to fight against them… whoever they were though there wasn't much time for it. Obviously, judging by the look on your face, I didn't succeed."

"No but at least you weren't hurt… right?" Castle said as he took her hand then, holding it tightly before he ran his thumb over the back of it.

"No I think they used chloroform," Beckett said. "How long have I been gone?"

"Not long. Fifteen, twenty minutes at the most," Castle replied, making a stab at the time as he really couldn't remember.

"Okay, then they…" Beckett started to say before she trailed off.

"They thought you were Leah." "They thought I was Leah," Castle and then Beckett said.

"But… they have to know our costumes were different," Beckett protested though it made sense.

"The lights were off when I came into this room," Castle said. "So if they grabbed you from behind then they didn't realize they had the wrong person until they had you in here."

"Or when I spoke," Beckett told him. "I began to try and tell him to let me go before I got knocked out. I didn't say it fully but they must have realized then who I was."

Castle nodded and then stood up as she started to move and helped her get off the bed before he pulled her into his arms.

"You were that worried?" Beckett asked, though she could feel the answer to that in the way he held her against him.

"It wasn't that long but there's a killer love," Castle told her.

"We need to go down," Beckett replied though she didn't mind the pause at that moment.

"David will check on everyone now," Castle reminded her. He pulled away from her slightly and then leaned down, kissing her gently on the lips before she was responding. He didn't let that last for too long before they were parting, pressing his forehead against hers. "I have to ask; I'm just making sure; do-" he began.

"I'm okay we should head downstairs," Beckett told him firmly. She let him lean down then so he would be able to take off her shoe. She slipped her foot back into it, smiling for a moment when he gripped it for a second and then hurriedly buckled it. "Did anything happen when you started looking for me?" she asked him as they headed out of the room.

Closing the lights and then the door which he then locked Castle was about to answer her when he realized something. "Do you have the keys?"

"Yes," Beckett said, taking out the ring that was in her pocket.

Seeing the questioning look on his wife's face Castle told her, "I have a key that John gave me, Beatrice had it."

"We need to ask if there are more than just the two keys," Beckett said with a slight frown. She told her husband, "There's the problem of how Lloyd would have been able to get a hold of a key if there are just two."

"If it's him," Castle said.

"I know," Beckett said, as she aware of what he was thinking.

"Kate, you're alright," Beatrice said at the bottom of the stairs as the two descended. "Are you?"

"I'm fine; the killer thought I was…" Beckett began before trailing off and looking over to her left to the Plumeys who were in the doorway.

"Me?" Leah asked before she looked at her dress and then Beckett's which were slightly similar in color. "Oh god, I'm so sorry."

Wondering why the woman was looking at the owners before at his wife Castle said, "It's not your fault. Dale, Rowena, they were-"

"They were here the entire time," the latter said with a slight nod.

"Everyone was here," John said as the two then turned to him. "No one had left around the time you were supposed to have come to speak to me."

"How many keys do you have?" Beckett then asked. "To get into the rooms."

"Just the two," John replied.

Castle and Beckett weren't very surprised at the sound of that and they looked at the people that were behind the owners before he spoke.

"You took another roll call?" he said.

"We did," Beatrice replied. "We're all here."

"Then we should just go back to what we were doing before," Beckett said.

After the entry and hall had emptied and they were nearly alone again Castle said to the Fosters, "Care to join us?"

"You don't want us to keep watch with the Kemps on everyone?" Rebecca asked in surprise.

"They've got things handled, since everyone's still here," Castle said.

"We'll let you have your coffee alone," David said. "And we'll help out the Kemps."

Once they were completely alone Castle asked his wife, "You still want coffee?"

"I do, or tea, either way," Beckett said as he led her to the dining room. She watched as he picked up the two mugs on the end of the kitchen table and she sat saying, "This storm is not helping us."

"I know," Castle replied, dumping the lukewarm coffees in the sink. "I wonder if the police are trying to get out here still because obviously both ways to this place are blocked in some way."

"They'll try, especially since John told them that there have been two murders," Beckett replied. She looked at the clock on the wall near the door and said, "But they might have given up."

Castle knew that there wasn't much he could say to that so he focused on making the coffee before he went to the table, giving her her mug before he pulled a chair directly next to hers before he sat; taking her free hand in his own.

Smiling briefly at him Beckett said, "I hope they're asleep right now."

"They are," Castle said, glancing at the clock himself as he couldn't look at his watch. "My mother is likely watching TV or on the phone," he said.

"Should we tell them what happened?" Becket asked, referring to their parents.

"They're going to ask how our time here was," Castle replied. "We need to tell them something. And there's a part of me that thinks they won't be all that surprised to hear about this."

"Probably not," Beckett said in response with a slight sigh. She took a few more sips of her drink before she started to open her mouth to speak, to ask if he wanted to go over everything they had so far.

Before she could speak and while there was a lull elsewhere in the house there was a loud crash that brought everyone out to the entry.

"What was that?" John asked Castle and Beckett, seeing they were looking upstairs.

"I think that was in one of the bedrooms," Beckett said.

At that moment Castle was looking over at the living room and when he saw that there was only Rory there with the Reids he said, "Where is she?"

"She was running upstairs, we watched her," Rory said.

"We tried to stop her but she said we'd see her since their room is right there," Dale said, looking hesitant.

"The door is closed," Beckett said.

"I know where that crash was," Castle said, going up with her. "Keep everyone back," he instructed the Fosters and Reids.

Trying the doorknob Beckett had to get the key from her pocket to open it, a sinking feeling going through her as she then opened the door.

"Damn it," Castle swore when he saw Leah on the floor, a huge, ornate candlestick that had been in the dining room next to her and blood covering the back of the woman's head.

"Is she," Rory said, coming up to the doorway then. "Leah!" he yelled when he saw his wife, racing over to her.

Castle was about to grab the man to stop him but he felt Beckett holding him back and he turned away as she did to give him a moment of privacy.

"Why, why…" Rory was saying, obviously crying.

"Rory," Beckett said, going over to him then.

"This is your fault," the man exploded with when she touched him on the shoulder. He jumped up and he started to lean into her before Castle was blocking her from him. "He thought she was you and when he discovered it was you he had to finish the job. If he'd just killed you she wouldn't be dead!"

"Rick don't," Beckett said, having to grab at him to stop her husband from punching the man in the face.

"Here," John said, coming inside then with his wife and Mudd. "We'll take care of everything."

"We'll be outside," Beckett told them. When the owner nodded she went with her husband to the hall and said, "How did he get in?"

"I think at this point he's waiting for us to not be in a certain area," Castle said.

Nodding at that since the first murder had occurred when they were in the parlor, the second while they'd been in the parlor as well but occupied and the third when they'd been in the kitchen Beckett said, "I think we need to take shifts walking around the house."

Though he wanted to tell her that it was a little crazy to do that Castle knew she was right so he nodded in agreement before he looked up as Mudd and the Kemps walked out. "You're leaving him in there?" he said in surprise.

"He became a little… belligerent when we tried to move him," John said. "It's best he stays, we'll get someone to keep watch over him."

"What happened," Beckett asked the doctor.

"Blunt force trauma with that candelabra," Mudd said quickly. "It's likely the killer was waiting to come up behind her and struck her. She was killed instantly, judging by the wound."

Beckett watched the man go past them then and she turned to the owners saying, "Someone needs to go to the city."

"I'll go," a voice said from behind them.

"You-" John said in surprise as he looked at Rory.

"I need to get the police here, get them to find out who the hell did this," the man replied simply.

Castle grabbed his wife's hand at the jab but wasn't surprised when she didn't say anything as they waited to see what the owner would tell them.

"I can't let you go alone," John said, himself looking to Beckett.

"I'll go with him," Greenglass said, suddenly appearing at the top of the stairs. "He's right, we need to find the killer and we need the police here before all twelve of us are dead."

"If the road is blocked," Beatrice said, looking at Beckett momentarily. "Then come back."

"We will," Rory said, looking to Greenglass.

"I'll join them, just in case," another man named Fischer said, stepping forward before anyone could say anything.

"I'll take them out to the cars," John then said.

"We'll take over keeping an eye on everyone," Castle told them. He and his wife followed the group downstairs, watching them go over to the entry. As the men were all getting on coats he let Beckett take him back to the parlor, a little surprised to see her slightly hesitating for a moment. "What is it?" he asked.

"No just wondering how they'll take us coming in," Beckett said.

Castle wondered why that thought hadn't occurred to him but he wasn't as unsure as his wife that they would protest them being there. And as they stepped into the doorway he saw that a few people were looking at them, what seemed to be guiltily. "Is everyone okay?" he asked.

Beckett squeezed his hand tightly at that and when she saw some of their fellow guests were nodding or vocalizing they were she went with him over to David and Rebecca. "Everyone's here?" she asked, looking for the Musgraves, Scarboroughs, Pearsons and Simone and easily spotting them alone in the library.

"They're okay in there right?" David said, following her gaze.

"Yeah no windows, no points of entry other than the door," Castle said.

"Then everyone is here," David replied. "And we're okay. You Kate?"

"I'm fine," Beckett said, nodding her head. "Tired."

"Me too," Rebecca said with a sigh. "We might not be able to sleep for a while."

"We'll have to see how things go," Beckett said before she looked out the windows again. Seeing the rain she hoped that the men who were heading into the city were able to make it through the storm to take the weight of investigating the murders off of hers and Castle's hands.

For a while the room was literally quiet as the guests were trying not to look at Castle and Beckett, the sound of the storm drowning out the silence.

"Should we play some music again?" Rebecca suddenly said. "You know, to drown out the silence right now?"

"I don't think people will want to dance," David told his wife.

"They could relax a little," Castle said, under his breath though as he looked around at everyone.

"Maybe," Beckett said, holding his hand tightly and gently squeezing it.

"Or not," Castle said. He looked around and said, "There's no way to play anything."

"Then it's not needed," David said. "So we have everything set with the party."

Not minding the fact that he was so obviously changing the subject Beckett said, "I think we have everything."

"How many times have we asked you that?" Rebecca said with a slight smile.

"A number of times," Castle said. "But I get the feeling that's you two feeling guilty a bit for us holding the party at our house."

"You have a baby girl," Beckett said. "And for the very last time, it wasn't as hard as you think it was for us to get everything ready."

"Okay but next party we'll take over," David said. He then glanced around the room again before he said, "You're missing them too?"

"Our girls?" Castle said. When the two nodded he said, "Hard not to, especially now."

Beckett looked around with him then and squeezed his hand firmly once more before saying, "I feel like we've given up."

"No you need to rest you've nearly been… you were attacked," Rebecca said, having to correct herself midway through.

"You mean nearly killed of course," Beckett replied.

"Why don't we help you a little?" David said. When his wife nudged him in the side he said, "Obviously she doesn't want to stop investigating."

"I don't," Beckett said, unable to help smiling briefly at her friend as she looked to her, a little embarrassed.

"That might help," Castle said, looking at his wife.

"It could," Beckett replied. "Also it would help if we had a murder board."

"I have my tablet," Castle told her.

"I'll go with him," David said when all of a sudden her husband jumped up and left.

"Thank you," Beckett called, watching them go.

"Okay, so… should we do this here?" Rebecca asked.

"No," Beckett said with a hint of a smile. "Come on, we'll go into the dining room." She led the way over there before she and Rebecca stood at one of the windows to wait for their husbands to join them.

"You think the two guys are going to make it back?" Rebecca asked her friend.

"I have no idea," Beckett said.

At that same moment the front door swung open eliciting some cries from the parlor as Beckett and Rebecca went to the entry and Castle and David rushed down from the stairs.

"We couldn't make it," Rory said, looking grim. "There was a huge tree branch in both directions blocking the roads."

"They weren't placed there were they?" Castle asked as he went over to his wife and handed her his tablet.

"I don't know, it's impossible to tell," Rory replied.

"I don't think so," the man who'd gone with the two; Fischer; said. "Because there were trees with cracked off branches on the sides that we could see when we looked, recently cracked off and too thick to be pulled off."

"So we're stuck here with a killer?" a voice from the group behind the Kemps said.

"No, look, the rain has stopped," Castle said, looking past the three to the front. "We can get the branches out of the way and call for the police again."

A streak of lightning in the sky, close to the front of the B&B, suddenly shot down and the rain abruptly began to pour.

"What the hell," Castle said, looking at his wife.

"I don't know," Beckett said, shaking her head. "It must be a huge storm though. I don't think I'd recommend you going, at least not until the lightning stops."

"I'd have to agree," John said. He looked behind him at the men in the group and seeing that none of them were ready to protest that he said, "I guess we just go back to waiting now, why don't we go to the family room, we have a TV there."

"Do you still want to work…" Castle started to say before he trailed off when Greenglass and Rory walked up to them.

"We'd like to go to our wives," Rory said, looking tired. "Or is that not allowed?"

"You can go," Beckett said, nodding to Castle.

"We'll stay here while you let him in," he said to David as he handed him the other skeleton key.

When the two men were going upstairs Greenglass turned to Castle and Beckett and said, "I'm begging you, let me see her."

"Alright," Beckett said, though she wasn't sure about doing that. Before she left with him she said to her husband, "Make sure David leaves the door open."

"Thank you… I can't stay with her can I?" Greenglass asked as he, Beckett and Rebecca trailing after them went into the dining room.

"I'm afraid not," Beckett replied. "The window is still open and the killer could get in."

"Of course but… why don't you close it?" Greenglass asked.

"Fingerprints?" Rebecca suggested as Beckett was opening the door to the ballroom.

"And also any kind of other evidence," she said with a slight nod. She opened the door and then froze, seeing that the room was not as they'd left it. She swore and after telling Rebecca to take Greenglass back to the parlor, turned around to go to the entry where Castle was still waiting for David though he was descending at that moment.

"What happened?" he asked, nearly at the same time as his friend.

"Helena's body is gone," Beckett told him.

"What?" Castle said, following her to the dining room where Rebecca was trying to pull Greenglass away. "Maury," he said firmly and loudly as the man was yelling at the woman. "Go we'll figure this out."

"Yeah since you're doing such a bang up job right now," Greenglass yelled to them as David was able to pull him away at that point.

"This is… not good," Castle said unnecessarily as he looked at the floor where the body had been from the window that had been closed.

"Her room," Castle and Beckett suddenly said together at the same time. They turned and ran out before he was locking the door, having to push past everyone gathered at the entrance to the dining room. Racing up the stairs Castle was the first to reach the room where the Greenglasses had been placed and he opened the door first with his skeleton key.

"Why," Beckett said, seeing the body of the woman on the bed inside the Greenglass' room. "Why would he come back and how did he get her up here?"

"We need the security-" Castle started to say before he was interrupted by the sound of footsteps down the hall. "Maury, wait," he said to Greenglass who had entered.

"Helena," the man breathed out, seeing his wife. "Get out," he said to Beckett who was closer to the bed. "Get out of here now!"

Going back to Castle as she knew the man had reached his breaking point Beckett let him lead her out and she watched him pause in the doorway, looking back in. "The window," she said.

"Yeah I didn't do that," Castle replied. "So of course Lloyd. But I have a theory love; you're probably not going to like it."

"What he teleported her body up there?" Beckett asked.

"We've been around each other a long time," Castle said briefly. "No, he took the body and stored it up in another room closer to the stairs."

"I had that same idea," Beckett replied. "But there's the fact that we all would have heard him; or someone could have."

"Then there's a separate way in and out," Castle said thoughtfully.

"No not a dumbwaiter, they built the house," Beckett reminded him, knowing what he was thinking.

"Then a passage," Castle replied, taking her hand so they could walk over to the stairs. He paused and then said, "I'm thinking of asking Dale to step in there."

"I can," the man himself said, watching as Castle and Beckett turned to him. "I'll talk to him… see what I can do to calm him down and also watch out for him. But is her body really there?"

"It is," Beckett said, seeing the guests gathered at the living room, looking at them almost angrily. "I think we're about to get fired," she said to her husband.

"It's up to Mr. Kemp," Dale said. "I asked Rowena to stick with the Fosters," he then said.

"Good luck," Castle told the man, handing him the skeleton key. "Keep that on you… wherever you can hide it."

"I don't like this Rick," Beckett said then as they went down the stairs.

"Neither do I but-" Castle began to say.

"We want them to stop Mr. Kemp," Carter said suddenly as the two got to the end of the stairs and looked to the living room.

"They're getting people killed," Barclay said.

"We're not doing anything," Castle said.

"Exactly," another man, one from the catering company, said in a withering sneer.

"We can only investigate so much," Beckett said, trying not to sound too angry though she was having a hard time controlling herself.

"Then maybe you should stop and let the police do that," a woman snapped.

"Enough," John said, looking at the guests. "They're doing the best they can in the situation. What we need to do right now is stay together as Ms. Beckett suggested and not move an inch without anyone knowing."

"And what about Mr. Greenglass?" someone asked.

"My husband is with him and his wife," Rowena spoke up saying. "They'll be alright."

"Let me get the movie started again," John suggested as he and his wife started to usher the others to the family room.

"Are you thinking the same as me love?" Castle asked, hearing Beatrice talking about another roll call.

"We need to check on the bodies? I think so," Beckett said before she let Castle take her hand and lead her upstairs. They went first to the Plumeys room and there on the bed still was Leah. When they went to the Whitson's room she went inside first after opening the door and she went straight to the bed, stopping in her tracks as she approached the empty bed.

"Where-" Castle started to say.

"Virginia!" a voice yelled at the same time downstairs.

When Castle and Beckett had made it to the top of the stairs they saw that Lewis Scarborough was nearly to them and they almost fell as they got out of the way of the man's right hook to Castle.

Holding the man against the wall after he'd straightened up Castle said, "Where's your wife?"

"She's gone, I just did a roll call-" Beatrice said frantically from the entry where the guests were looking up at the second floor.

"You killed her, where is she?" Scarborough growled to the two. "Where is my wife?" he bellowed just before the lights flickered and then went out completely, plunging the abode once again into darkness.