Sadie's POV

Damon opened the door to our house to let Ric in. Elena, Stefan, Jeremy, and Anna were in the living room.

"Can I get you anything, Ric?" Damon asked. "Bourbon? Coffee? Bourbon in your coffee?"

"Elena said that you needed my help." Ric replied, apparently not in the mood for nonsense.

"We were hoping you could help shed some light on the Lockwood family." Stefan stated.

Cassidy's POV

I was with Mason. It looked like we were going to be working out together when in actuality he was going to take me to the cellar. I needed to make sure that I learn to live with this because I do think that there is a realistic possibility that Klaus could turn me into a hybrid.

Sadie's POV

"Why would I know anything about the Lockwoods?" Ric asked.

"You wouldn't, but your dead, not dead vampire wife might." Damon explained.

"You said that Isobel did research when you were at Duke together." I remarked.

"Isobel's research in here in Mystic Falls was rooted in folklore and legend, at the time I thought it was a myth." Ric stated.

"You mean like that amazing vampire story?" Damon quipped. We didn't need his sarcasm.

"What else was there besides vampires?" Elena questioned.

"Lycanthropes." Ric answered.

"You mean werewolves?" Jeremy responded.

"This is way too Lon Chaney." Damon declared.

"Lon Chaney never actually played a werewolf." Anna pointed out.

"Well I've been on this planet 170 years and I've never seen a werewolf." Damon declared.

"I've been here longer and have seen one." Anna argued.

Cassidy's POV

We went down into the cellar.

"So everything here should hold you." He told me. I hoped that he was right and also that Tyler wouldn't try to come down here.

Sadie's POV

"Why do you suspect the Lockwoods?" Ric asked us.

"Because the vervain didn't affect the mayor on Founder's Day, but the Gilbert device did." Damon explained. "It also affected Tyler."

"What about Cassidy?" Ric questioned.

"It affected her too." Anna admitted. I think that she was not trying to say that she knew.

"And she exhibited superhuman strength at the school carnival." Stefan added. "We've got plenty of evidence."

"We were hoping that Isobel's research could tell us more." Elena added.

"All of her things are still at Duke." Ric explained. "Her office is still there because technically she is still missing."

"Can we access it?" Damon asked. "Ric, we need to know what we're dealing with. Any of the Lockwoods could be werewolves and if this wolfman thing is true, I know that it usually doesn't end well for vampires."

The next day, I was in Jeremy's room as I prepared for the trip. I wore a black miniskirt and V-neck mauve top.

"So we need you to keep an eye on Tyler and Cass." I requested. "Stefan and Anna will be working with Caroline."

"Are you sure that you want to go on this trip?" Jeremy asked me as wrapped his arms around me.

"Someone has to prevent Elena and Ric from teaming up to kill Damon." I quipped.

"So what is the plan involving Caroline?" Jeremy asked curiously.

"Bonnie is going to make a daylight ring and then Stefan and Anna are going to teach her how to hunt animals." I explained.

"Are you sure that it's a good idea to do this on a full moon?" He inquired.

"For all we know, they could change voluntarily." I pointed out. "That's why we need to figure it out. I love you and I'll see you when we get back tonight."

From there, we headed downstairs and I gave Jeremy a kiss in the doorway. I got in the backseat, watching as Elena put on a show of affection in front of my brother before she took a seat next to me.

"Was that really necessary?" I asked.

Cassidy's POV

I headed downstairs to see Tyler talking to our mom about the cellar. He was fishing. I don't see why we couldn't just tell him about it. I had on a strapless black tunic and Daisy Dukes over my bikini.

"A party that sounds fun." I commented as I entered the room.

"Well, be careful." Mom instructed. "We're liable if anything happens on the property."

"I'll make sure nothing happens." I promised.

I ended up meeting with Tina outside of the house.

"So Tyler is throwing a party at the swimming hole." I told her. "You're welcome to come."

"How long will it be before I can see Caroline again?" She asked impatiently.

"Anna said that it would probably take a way for her to get used to the smell of blood." I explained. "You might want to pause for now and resume things when she gets better because the last thing that she wants to do is hurt you."

Sadie's POV

"So how are you girls doing back there?" Damon asked. "You know this whole ignoring me because I said that I like you makes it seem like you like me too. I know you don't hate me."

"You tried to kill one of her friends." I pointed out.

"But I didn't." Damon argued.

"Doesn't matter." I stated.

"Elena, I wasn't going to kill her." Damon persisted.

Cassidy's POV

I decided a little bit of fun wouldn't hurt before I had to lock myself up. I had stripped off my clothes to reveal a pink bikini. I knew I would have to be able to sneak away in a way that wouldn't make it so easy to notice.

Sadie's POV

"So Isobel was officially employed by the Anthropology department." Ric explained after we arrived on campus. We saw that chick whose name that I couldn't remember was there. "Excuse me, I'm Alaric Saltzman and these are my friends, Elena Gilbert and Damon and Sadie Salvatore. I called earlier."

"Yes, I'm Vanessa Munroe, research assistant, Comparative Folklore." She introduced. She looked us over nervously. "I'm sorry. Just let me grab Isobel's keys."

She got the keys and let us into the office. I knew I would have to be on my toes. We walked inside and I turned around and caught the incoming arrow. I was getting better at this. Ric grabbed her and held her against the wall.

"That bitch is dead." Damon remarked.

"You're not going to kill her." Elena declared as she stood in front of him.

"She was aiming at you." Damon reminded her.

"I freaked, okay. I read Isobel's research." Vanessa replied as Ric sat her down. "It's not possible! Damon Salvatore and Katherine Pierce died in 1864, and although there's no death certificate, there's no way Sadie Salvatore could be alive either."

"Then you should know how possible this is." Ric remarked.

"I'm Elena Gilbert." The doppelganger stated. "Isobel's daughter, and a relative of Katherine Pierce. These are two of the three Salvatores. We need to see all of Isobel's research related to Mystic Falls."

You know I think if we had the time, Damon would try to have sex with her. I guess it was a good thing that we didn't. We just needed to get to the bottom of this so I could stop pretending that I know nothing.

"This box tracks Katherine's arrival to Mystic Falls in 1864." Vanessa stated as she handed one to me and Elena. "So can you read minds?"

"Yes, I do like girls on top." Damon quipped.

"No, we can't read minds." I deadpanned.

"Does vervain work?" Vanessa questioned.

"No, not at all." Damon declared.

"Damon's very capable of being a first-rate jackass though." Elena replied.

Cassidy's POV

I walked up to Tina as she was talking to Tyler.

"So I hear that you're dating Forbes right now." Tyler stated. "I just wanted to say that I approve."

"My brother, Mr. Classy." I quipped.

"So where is she today?" Tyler asked nosily.

"She's going hunting with some friends of mine." I told him sarcastically.

"Okay, don't tell me." Tyler remarked as he walked away.

"I'm sorry about him." I told her. "He's kind of a pig."

"I probably would have hated having him as my beard." Tina replied. "I really hope that this goes well because I really don't want to kill her."

At that point, Mason pulled up.

"What's your uncle doing here?" The blonde asked as I went over to his vehicle to talk to him.

"Please don't tell me that you're here to stop the party." I remarked.

"Well you do need to make sure everyone's out of here by dark." He explained. "You should probably be out of here before then. The last thing that we need is an animal attack to happen here. Tell Tyler that he needs to take the party somewhere else."

Mason drove away, and that was when Anna, Caroline and Stefan arrived. I wrapped my arm around my girlfriend, forgetting that I was still kind of wet. Stefan definitely looked nervous around me, giving me his serious-vampire face.

"How did the hunting go?" I questioned.

"It went well." Anna remarked. "I guess since I'm already wet, I should take my clothes off and get in the water."

At that point, Caroline spotted her girlfriend.

"You need to be careful." I warned the new vampire. "Tina ingests vervain."

Actually that was probably a good thing. It was at that point, that Caroline noticed that Aimee was talking to Tina flirtatiously. Did I set off some sort of domino effect by coming here or something? At that point, Anna grabbed me and took me into the woods. I guess she wasn't that interested in the water. I also tried to think where else I saw the girl that played Aimee. I knew it was somewhere, but couldn't remember. I know Sarah was in Cory in the House.

Sadie's POV

Damon was being cryptic and flirty with Elena about this stuff. It really wasn't being helpful.

"If you have something to tell us, then just tell us." I told him. "If not, then shut up."

"Hey guys, check this out." Ric instructed as we came across a book.

"There's no record of werewolf mythology in Mystic Falls, but here are some other records about it." Vanessa explained. "There's also something called the Curse of the Sun and the Moon. Basically, 600 years ago, the Aztecs were overrun by vampires and werewolves, so a shaman put a curse on them, making it so vampires were killed by the sun and werewolves could only turn on a full moon."

Cassidy's POV

Anna and I went straight to the cellar. I think we were going to have sex in there. I guess that was a thing that some people did, like in Fifty Shades of Gray. I've never read it, but I heard it was filthy.

Sadie's POV

"Werewolves will attack humans, but instinct leads them to their prey of choice: vampires." Vanessa continued.

"If werewolves were hunting vampires, I would know about it." Damon argued.

"Not if there aren't that many. Werewolves can't be turned like vampires. You have to be born one." Vanessa explained. "Vampires hunted them because legend has it that a werewolf bite is fatal to a vampire."

"That's not good." Damon commented.

Cassidy's POV

I was naked and chained to the wall as Anna looked me over.

"Are you sure that these chains are going to hold me?" I asked her.

"No, but the door should." She explained. "I'll make sure that no one comes in here."

"So have told anyone about this?" I questioned.

"No, but they're definitely suspecting your family, including Tyler." Anna answered. "What's Mason going to do if you're in here?"

"I don't know, and that's why I want you to be careful." I declared. "You said that a bite is fatal and the last thing that I want is for you to be stuck between us."

"I'm going to be fine." She promised. I pretty much knew that but it was still going to be an eventful night for her and Stefan and Caroline.

Sadie's POV

I decided to call Stefan and tell him what we learned.

"So there's something that you might need to be worried about." I declared. "We've got word that a werewolf bite can kill a vampire and we don't know which of them are werewolves, so you need to be careful and probably get everyone inside just to be safe."

"I have to see if I can find Caroline and Anna." Stefan told me. His night was going to be more exciting than mine. "I'll see you when you get home."

Cassidy's POV

I began to feel the pain as my body began to turn. It wasn't like anything that I'd ever felt before.

"Get out of here!" I yelled at her as I heard the sounds of Tyler's voice, followed by the sounds of Anna compelling him.

I had to get control of this, or the pain would control me which would eventually lead to me being sired to Klaus because I'm basically assuming that I'm not going to be able to leave here ever. I really don't think that there is a way back and Sadie and I are stuck here. I could feel my body starting to change as I let out a string of expletives that George Carlin would be jealous of. It didn't last much longer because I blacked out, now fully transformed.

Sadie's POV

Elena looked through the stuff, finding an old picture of Katherine.

"So have you done in research on doppelgangers?" She asked Vanessa.

"Well it means double goer in German, and basically a doppelganger will torment their lookalike. There wasn't anything explaining why they exist, but there can only be one living doppelganger at a time, meaning there can't be identical twins. They try to undo their lives."

"Yeah, that describes Katherine pretty well." I commented.

"I just wanna know why we look alike." Elena remarked.

"It's quite a mystery, isn't it?" Damon remarked.

"Damon, we really don't need this." I stated. "If you don't know anything, don't say anything."

"If I did, I wouldn't tell either of you with that kind of attitude." My brother responded.

"You're not doing a good job of mending the bridge." I told him.

At that point, Elena went outside and I followed her to make sure that she was safe because someone had to do it.

"I can't believe that Cass might be a werewolf." Elena replied. "I mean I've known her all my life and nothing like this has ever come up before."

"Well that was before there were vampires in town." I pointed out. "I don't know how this works, but I'm guessing it has to do with more than just being born a werewolf. There's probably something else that needs to happen. I know in Twilight, you could only become a werewolf when a vampire came nearby and we don't really have much truth to draw any of this from."

"I just hope that she doesn't hurt anyone, because that won't go well for her." Elena remarked. That was very true, but I was pretty sure that she had a plan. Elena went out to the car and struggled to open it because it was locked. I don't know why she kept trying.

"Let me help." Damon said as he used the key. "You know you didn't really look hard enough."

"Petrova, I saw this on the shelf." Elena replied. I didn't.

"Katherine's real name was Katerina Petrova and I'm guessing that book has something about her family history is there." I stated.

"Let me know what you find." Damon told her. "I'm kind of interested myself. You know you're right to hate me. I wasn't thinking rationally when it came to Caroline or what it would have done to you if I succeeded. But you hated me before and we became friends, so I think that we can do it again."

"Let's just go home." I remarked. "Hey, Ric get your ass over here or I'm hotwiring this."

Cassidy's POV

I don't know how long it was before I woke up. I noticed that the chains were broken, but I was still in the cellar. Mason then came to check up on me, before I even had a chance to get dressed.

"You need to learn to knock." I told him as I covered myself.

"Sorry, I just wanted to make sure that you were down here." He replied. "Tyler knows about us now. He saw me as a wolf. Well that was something that I had to deal with.

"Can you look away so I can change?" I requested before he did so and I put my bikini on. I headed back over to the lake where I found Anna with my clothes. She was cleaning Tina's neck off.

"What happened?" I asked in concern.

"Caroline attacked her, but she's fine too." Anna remarked.

"What were you doing out in the woods?" Tina questioned. I sighed.

"I was in the woods because I'm a werewolf." I declared. "Are you and Caroline going to break up or something?"

"I think it might be for good." Tina replied. "I was stupid to think that I could date a vampire. It took everything that I had for me not to stake her tonight. I can't be with someone like that. How can you two be together? Aren't werewolves and vampires supposed to be enemies?"

"We're supposed to be, but we're not." I remarked. "You can compare it to whatever kind of star-crossed lovers you want, but we love each other."

Sadie's POV

We returned to the Gilbert house and Damon and Elena began to talk about how they were never going to be a couple or something. I headed upstairs because I needed to see Jeremy. I should have stayed here because everything would have gone fine without me and I didn't like to be away from him. I'm madly in love.