Author Note: Okay, next chapter is done. It was a bit difficult so please tell me what you think. I love holidays!

The Siren

When the group had materialized in the hall of Aelithe's home, Piper and Leo announced that they needed to check with their sons: "Listen, we really have to go and see Wyatt and Chris, can we leave you here?" Leo said.

"Ehm, sure, I mean teaching to use your powers doesn't require five persons." Aelithe said.

"Can you and Phoebe handle it alone?" Paige asked Aelithe, who turned to her, with a question in her eyes. "I want to go to Magic School, see how the students are doing, they are still my responsibility." Paige explained.

"Phoebe, can we do this together?" Aelithe asked, turning to Phoebe, who responded positively: "Of course we can do this together, you go ahead Paige. Piper and Leo say 'hi' to my nephews." They nodded and then orbed out, leaving Grissom, Sara, Phoebe and Aelithe in the hall. "Let's go to the living room." Aelithe turned to walk away, Sara stopped her: "Can I use your rest room?"

"Sure, it's the second door on the left." Aelithe pointed. Sara walked away as Aelithe, Phoebe and Grissom stepped into the living room. "I must say Grissom, the name Nathalie Davis doesn't ring a bell with me. I know the Book of Shadow very well, but I have never seen that name in it." Phoebe started to talk as she and Grissom stepped into the living room, because they were looking at each other, they didn't notice the visitor. Their attention was drawn to the visitor by Aelithe, who addressed the woman who was seated at the sofa. The woman had beautiful dark brown hair and was dressed in a corset and skirt. Her hair was twirled on top of her head, not one strand was out of place. The make-up she wore accentuated her lips and eyes perfectly. "Ah, I was expecting you." Aelithe said. Phoebe and Grissom turned their attention to the woman seated on the couch, and both couldn't hide their surprise as both spoke up in the same moment: "Heather." Grissom said. "What is a Siren doing here?" Phoebe asked. Heather rose from her seat and Aelithe alternated her sight between Grissom, Phoebe and Heather, not knowing where to start, but the decision was made for her as Phoebe started to raise her voice: "Cole killed you. I saw him do it." Heather focused her attention on Phoebe and answered her: "I think this Cole guy killed one of my sisters. Did you really think that there was only one Siren? I don't even know anyone that goes by that name." Phoebe was not truly convinced, but Aelithe took the last bit of doubt away: "Heather has never left Las Vegas. But I did hear about someone who killed a Siren in San Fransisco. The Siren bit a little too much she could chew, I heard, trying to finish the Source?"

"Oh, I heard about that. Cole was the Source of all Evil? And he loved you?! Wow figure that, talk about Romeo and Juliet, that even trumps the marriage of one of the Charmed Ones to a White Lighter: a witch and a demon." Heather almost seemed in awe.

"Well at least Piper and Leo did last." Phoebe sharply retorted. Heather simply raised an eyebrow and said to Aelithe, without turning away from Phoebe: "You have some powerful friends here, Aelithe. One of the Charmed Ones or possibly all?"

"None of your business, Heather." Aelithe answered her, curtly: "Phoebe, Heather has my permission to come and visit me. I already expected her. She is my guest." Aelithe looked at Phoebe, who nodded. At the word 'guest' Heather turned to Aelithe: "Talking about guests: I have one, whom I did not invite. I heard you invited him on my part."

"Lothar."

"Yes, I don't want him in my home, Aelithe. He is occupying a room and I can not use him in my business. What do you want me to do?"

"I want you to give him some time to open the bar he wants to open. He helped me and needed a safe place for a couple of days."

"So you shove him into my care?"

"I knew you could help him and had some space to spare."

"I would appreciate it if you consulted with me first, before just sending people to me, who use my space and don't pay for it. I still have to be able to work." Heather snapped.

"Do I have to remind you, who made sure you can work here?"

"No, I know the agreement we have. I get to live as long as I don't kill." Heather recited, rolling her eyes. "Good." Aelithe nodded, before she could continue, Sara came in: "You know Griss, I think I know…" Sara had her eyes trained on Grissom and saw his eyes flicker to the side. She followed his eyesight and stopped talking. Sara straightened her back and lifted her head: "Miss Kessler." Sara said, slightly hesitantly and unsure. Sara turned her head back to Grissom and questioningly lifted her eyebrows. Grissom in turn lifted his shoulders slightly. Sara turned her attention back to Heather who acknowledged Sara: "Miss Sidle, right?"

"Yes." A very uncomfortable silence fell over the room and no one felt the need to break it or knew how to. Sara was watching Heather, Grissom was watching Heather, Phoebe was watching Sara, Grissom and Aelithe, Heather was watching Sara and Grissom and Aelithe was watching everyone in the room. After several moments Phoebe and Aelithe looked at each other, in silent agreement Aelithe started to talk: "How do you know each other?" Aelithe asked no one specifically. Grissom was the only one to react, he turned his head to Aelithe: "Our paths have crossed four times, professionally."

"It feels like a bit more then just professional." Phoebe said. Sara and Heather were still eyeing each other. "Because it was a bit more then just professional, the first or second time, wasn't it Heather?" Sara said, not taking her eyes off of Heather.

"Is that the problem?" Heather retorted.

"No, not really, I didn't have a claim on him, still not really." Sara sweetly smiled.

"Do you feel threatened by me?"

"No, I trust Gil."

"Then why are you so hostile?"

"Because I don't trust you." Heather didn't have a response. Grissom couldn't help but feel a pang of guilt for what happened between him and Heather, but he also felt a great deal of pride to how Sara had rendered Heather speechless. Sara used the silence to pose her next question: "What are you doing here?"

"I had to square something with Aelithe. Not that it is any of your business." Sara briefly looked at Aelithe: "That is right. She is my guest." Aelithe confirmed. Sara nodded and broke the contact with Heather and went to stand next to Grissom. Aelithe addressed Heather: "I believe our business is done. I think you better leave, I'll come by for tea, okay?"

"I have one more question before I go. Are the rumours true?"

"What rumours?" Unsure of how to proceed Heather looked around. Aelithe seemed to understand her hesitation: "You can speak freely, they know."

"It is rumoured that the Power of Love has resurfaced. Is it true?" Heather asked excitedly.

"What is it to you?"

"I am just curious." Heather tried to look nonchalantly.

"Yeah right. Lothar told me that you wanted to feed on its passion. That wouldn't be true would it?" Aelithe asked, eyeing Heather suspiciously. Heather shrugs: "No of course not, we have an agreement."

"Good. It would have killed you."

"What do you mean?"

"For you, feeding on the passion of the Guardians of the Power of Love, would kill you. Their passion is solely based on love. You feed on the passion of lust, the fire of lust. The passion of the Power of Love would consume you, you can't control it, it's too pure. The guardians are also immune to your song."

"So that is why you didn't come." Heather said, pointing to Sara, taking everybody in the room by surprise. "Excuse me?"

"You didn't come when I sang my song for you, when I had him. You prevented me from having fun." Heather spat, pointing towards Grissom when she referred to a 'him'. The confusion was apparent on Sara's and Grissom's face. They looked at each other and then turned to Aelithe, hoping she could give them an answer. But Heather cut across her: "You two are the guardians aren't you? That is why I felt such a strong attraction to Grissom. Because the passion is so strong, your passion for Sara that is. Even then, you said you didn't have a claim on him, but the passion between you two was already raging wasn't it?" Heather said almost accusingly. Once more Sara and Grissom looked at Aelithe, Grissom voiced his confusion: "Could you please help us out, Aelithe?" Aelithe nodded: "Sure thing. Heather is a Siren, she feeds on passion, on the fire between two lovers. She and I made an agreement, she wouldn't kill people anymore and I let her run a business here in Las Vegas. However she was planning on feeding on the most powerful passion, the passion between the Guardians of the Power of Love. What she didn't know is that that passion would kill her. A Siren tricks her victims with a song, first the man, then she sings for the woman to come and watch her killing her man. No one can resist the song, except the Guardians."

"In case you weren't paying attention, you're the guardians." Heather spat out.

"We know that." Grissom calmly responded. Heather looked up surprised: "You knew?!" Grissom shrugged. Heather turned to Aelithe: "When did you find out?"

"Just a couple of days ago."

"Has Lothar helped you to find them? Is that why he is hiding with me?"

"Yes. He has helped, but he owned me a favour, so don't hold it against him."

"He's got to go. He can endanger my customers."

"No one knows where he is."

"They'll find out. Find another place for him. I've got to think of my innocent customers." Heather said, knowing Aelithe had an obligation to protect innocents. Phoebe could see that Aelithe was reluctant to admit she had made a mistake. "Aelithe, too many people know. The high ranking demons will want to find him, they wanted to get to the Power of Love before us, that didn't work, because of Lothar. They will hunt him down and you've got to think of the innocents."

"You are right. Okay, send him back, I'll find another place for him."

"Good. I think I'll leave now. See you next time, Grissom, Sara. I hope you have a good life." Heather nodded at them and then immediately walked out of the door. Aelithe followed her to show her the door.

Sara visibly relaxed as Heather left the room, she had accepted that Grissom shared a history with Heather, but that didn't make confrontations any easier. She could hear Grissom sigh slightly behind her, amused Sara turned to him. "Were you nervous? You were holding your breath." She added as an explanation. Grissom could see the smile in her eyes. "Isn't it always a bit tense to meet a former supposed lover with your current love?"

"I don't know, you tell me." Sara smiled. "Hé, don't worry, like I told Heather: I trust you."

"Thank you."

"I guess there are more magical creatures then we ever thought there could be."

"Yes, that is a worry." Grissom turned to Phoebe: "How can we be sure that someone is magical?"

"Well I don't know, you'll be able to recognise some, right away, like leprechauns. But others are harder to recognise. We have the Book of Shadows, I don't know if you'll get your own book or not. You can always ask Aelithe. Piper, Paige and I are not going to stay here for the rest of our lives, we need to get back home. Not right away, but eventually, when we have helped you get acquainted with your powers." Phoebe explained. Grissom and Sara nodded, they understood that they had to go home some day. Then Sara remembered what she was going to say to Grissom, before she had seen Heather in the room. "That reminds me. I think my powers might be related to physics."

"Physics?" Grissom turned back to Sara.

"Yes, think about it: magnetism, waves, vibrations and gravity. It is all linked to physics. And I have always been exceptionally good with physics, as if it didn't need explanation for me." Sara explained to Grissom.

"It does make sense." Grissom said, thinking back to the things that had happened the past days. The things that had happened around Sara were indeed things that defied the laws of physics. "So if we take that as the source of your powers, then how do we proceed from this point?" Grissom directed the question to Phoebe.

"Well, up until now you used powers instinctively. We or rather You have to figure out the extent of your powers, what they do and how to activate them. How to activate them consciously, instead of instinctively. You have to learn how to direct the powers and most importantly, you have to figure out what the Power of Love really does and entails." Phoebe summed up. Grissom then responded: "We also still have to work."

"Of course, listen working isn't a problem, Paige, Piper and I, we all have our jobs, it's just that you have to resign yourself to the fact that you are going to have more family problems. If you understand what I mean. You will need to leave your work on short notice sometimes. Especially the first few months might be difficult. Stick together, talk to each other and you'll be fine." Phoebe tried to reassure Grissom and Sara, who nodded.

"I think it is time to get started on that." Aelithe said, who had come back after saying goodbye to Heather. "Come on, let's go to the basement, I do all my fight training there. It is a nice open space." Aelithe led them to the basement, where Grissom and Sara spent the next hours trying to get some control on their powers, helped by Aelithe and Phoebe.

Author Note: So I hope you liked it, please review. I think this story will get another two or three chapters, in one the Angel of Death will appear, but not to worry, I have no character deaths planned, I love Grissom and Sara too much to do that. So anyway, please review.