Weeks went by and nothing happened. My parents were almost willing to let me go on another hunt. That's when she decided to show up at my house.

We were actually talking about letting me on a hunt when she came. Burst right through the door. My dad grabbed the Colt (They found out how to make new bullets) and my father pulled out his archangel blade.

"I'll send a bullet right through your head if you take a step anywhere near her." My dad threatened.

"Oh Dean, I wouldn't dare." Harmony sneered. "I just came to talk."

"Like hell you are." My father barked. He plunged the blade into her stomach. She grimaced in pain and pulled it out. Dropping it on the floor.

"That stung a little." She said. "But not enough to keep me down." The wound closed almost instantly.

"What are you?" My father asked in shock.

"Not even I really know." She said simply.

"Dad, Daddy, let me talk to her." I said.

"I'm not letting you near her." My dad argued.

"All she wants to do is talk." I assured him. "Don't ask me how, but I know she's telling the truth."

"Fine, but I'll be watching." They backed away from her and I stepped closer.

"Who are you?" I questioned.

"I told you, my name is Harmony Nightshade."

"I don't mean your name. Why is your power the polar opposite of mine? How the hell did you know where to find me?"

"You want an explanation, I'll give it to you. The reason for our powers begin the way they are is because we're opposites. How did I find you? We're connected. Bound by strength and by mind."

"What do you mean opposites?" My dad asked.

"It means, our powers are almost identical in strength, though one of us has much darker power." Harmony explained further. "Our power on the same side, with our bond, could be unstoppable."

"That's bullshit."

"She's telling the truth." I confirmed.

"It's part of the bond we share. We're meant to be on the same side."

"She'll never join you." My father assured. "Not if I have anything to do with it."

"Calm down Cassie, I'm on your side."

"So what you did to those girls was considered good in your book?" My dad asked.

"Are you ever going to let that one go?" She smirked. "Didn't you notice I'm part demon?"

"Get out of our house." My father spat.

"We're not done here." Harmony retorted.

"Why do you want my help?" I questioned. "You seem powerful enough to deal with whatever's getting in your way."

"Not quite." She corrected. "Without your help my powers are only slightly stronger than that dick Crowley."

Daddy looked grudgingly respectful.

"At least she has some sense in her." He acknowledged.

"Dean's agreeing with me?" Harmony asked. "That's my cue to leave." She turned towards the still opened door. "I'll be back of course." She said before disappearing.