Needless to say, the ride back to the inn was less than pleasant. Sam felt as though if he had tried, he could have cut the air because of how heavy it was with tension. Dean's eyes were fixed on the road in an angry stare, although not even he knew exactly what he was unhappy with. They had killed the monster, even though it wasn't technically they who killed it, but it was done, and he had no idea how. Once they were parked, Dean got out of the Impala without saying a word. Amy hesitantly stepped out, looking at Dean over the car's roof before throwing an uncertain glance at Sam.

"You're.. Upset with me?" Blinking, she looked back at Dean, who just gave her a flat look as he shut the door of the car, his lips somewhat primmed. Falling silent, she decided that is was probably best not to pry. Obviously, she had done something wrong, and it didn't look like she could rectify it. Sam approached her with a slight smile, patting her shoulder somewhat awkwardly.

"Don't let it get to you, Amy. He's just, well.. I don't think he's really accepted the fact that there are unicorns. And.. Whatever it was you did back there? It reminded him of... All, that." Sam cleared his throat hastily before holding up a finger, gesturing for Amy to wait there as he leapt up the few steps onto the porch, heading into the inn. She watched him hurry off after his brother, and it had been a long time since she'd been this confused. Killing the vampire had been their goal, but when it was dead, they had both stared at her like she had done something strange, something wrong even. Heaving a sigh, she leaned against the car with her hands in her pockets, looking down at her bare feet. Hunters were obviously far more complex than she had initially been lead to believe.

"What's your problem, Dean?!" He had shut the door to their room behind him, glaring at his brother who was just twisting off the cap of a beer. Dean let out a snort, slumping down into his seat by the table as he took a swig of the beverage, ignoring Sam completely. Throwing out his hands with a huff and a roll of his eyes, Sam walked towards the table.

"You're treating her like she's some kind of monster that can turn on us any time! She's one of the good guys, Dean..!" With a loud clonk Dean put down his beer on the table, turning in his seat to fully face his brother, locking eyes with him. "Oh yeah? Like how angels are supposed to be the good guys?"

"She's not an angel!" Dean rose hastily from his seat to thrust his finger against Sam's chest. "No, she's just a freaking unicorn, who just stabbed a vampire, and guess what? It fucking died!" Sam sucked in a breath to give Dean a quick comeback, but he drew a blank. Dean took a step back, throwing up his arms in an exaggerated motion. "Heck, we don't even know what she stabbed it with!" Taking a breath, Sam held up his hands with his palms towards the floor, lowering them in a gesture that was asking Dean to take it down a notch. Surprisingly, it seemed to work, as his worked up brother sank back down into his seat, chugging down some more of his beer.

"Okay, I'll admit, that was weird. But can't we just ask her?" Dean let out a snort with a sneer. "Yeah, sure, go ask the unicorn what her magical weapon is, good plan Sammy. Oh, and when she's stabbed you with it, don't come crying to me." Sam yet again failed to come up with a good comeback to that, but he was saved by Amy opening the door, although she did so very slowly, as if the room would explode if she wasn't careful.

"Can I just say that I would never stab Sam unless it was to save my own life?" She tried hesitantly, smiling a little. Dean just rolled his eyes, looking out the window instead of paying attention to Amy. Sam huffed out a chuckle and gave her a nod, sitting down on the edge of his bed.

"Yeah I know." Closing the door behind her, she glanced over at Dean quickly before looking back at Sam. This whole ordeal was stressing her, and it was obvious. Her shoulders were pulled up and tense, a frown disturbing her otherwise smooth features. It was as though she was expecting to get attacked at any moment.

"You can relax, he's not going to do anything, I promise." She let out a sigh of relief and her lips curved into a smile as she relaxed completely. "Oh, good!" Pulling out a chair, she plopped right down onto it, pulling up both her legs to put her arms around them, hugging them tightly to her chest.

"I almost thought I had killed the wrong person with the way you looked at me." She blinked slowly before frowning; the word 'kill' didn't taste very nice in her mouth, especially when it was said with her being the one who did the killing. Of all things a unicorn was supposed to do, killing was very far away. Sam took the opportunity to ask about what had really happened back at the construction site.

"About that, Amy.."

"Yes?"

"How exactly did you kill that vamp? They shouldn't die from getting stabbed." Jerking her shoulders in a quick shrug, she shook her head lightly. "As I said, I had no idea it would work! I was hoping to keep it still for you two to behead it." She frowned, leaning forward slightly. "That is how you kill them, right? Beheading? I didn't get that wrong?" Sam shook his head to confirm for her that she hadn't gotten that piece of information wrong.

"But I had no idea it would die!" Finally, Dean decided to get out of his corner to join the fight, leaning over the table to basically stare down Amy with an intense look.

"So, let me get this straight. You stabbed a vamp, with..?" He held up a hand, raising his eyebrows in a way to emphasise his question, hoping Amy would pick up on it. After a few moments of a confused grimace, she perked back up.

"Oh! My horn." Dean leaned back quickly with a defeated smile, looking over at Sam.

"Well there you have it, she stabbed it with her horn." Sam rolled his eyes at his brother and looked over at Amy, smiling slightly. "Nevermind him. I thought you said unicorns only.. Used to have horns?"

Now it seemed to sink in for Amy that these two hunters really didn't know squat about unicorns and what's happened to them over the course of centuries. It seemed that only the angel was knowledgeable about her kind. These two didn't even seem to know the very basic things.

"Well, you see, when we were forced to take human form, we obviously could not keep our horns." She let her legs slip off the chair, her hands falling to her lap. "But we did not lose it. A unicorn can not live without its horn. Uhm.." She paused to frown, looking up at the ceiling in the search of a way to describe it, before she thought of something. "Oh, I know! Do you know of an angels' grace, and its appearance?" Sam nodded with a slanted smile. "Yeah, it's a kind of blue energy, isn't it?" Amy nodded and clapped her hands together, glad that she now had somewhere to start off from.

"That's sort of what my horn is! It is my essence, my magic, my life force. An angel can live without its grace, they simply become mortal, but it would kill a unicorn if you were to take their horn." Dean threw back his head as he downed the rest of his beer before clearing his throat, pointing at Amy with the same hand in which he was holding the now empty bottle of beer.

"So you stabbed the vamp, with your.. Essence? Your horn?" Yet again, she nodded, her blue eyes shining with the accomplishment of having them understand.

"Hang on, but an angels' grace is just an energy, if any kind of matter, it would be described as liquid. How can you use it as a weapons?"

"Oh, angels can't. Their grace was never meant to leave them. My horn is not truly meant to be inside of me. It still wishes to return to the shape of a horn, a spear of sorts." It was all starting to come together for the two hunters, even Dean seemed to have relaxed now, letting that aggravation of not understanding go.

"You're basically a holy creature of purity, aren't you? I mean, the healing, the detecting poison, you're basically the ultimate pure creature?" Amy cleared her throat lightly and let out a laugh. "I wouldn't say ultimate.." Dean raised his eyebrows. "I mean you as a species, not you, specifically." Blinking, she stared at Dean for a few moments before the light flickered on in her mind.

"Oh. Oh! Then yes, we are the ultimate beings of purity."

"Which would explain why she was able to kill that vamp. All monsters are impurities, poison even, if you think about it." Sam let out a single huff as a chuckle, holding out his hands.

"She just did what she was meant to do."

"I don't know man, do you really think it's a good idea?" Dean stroked his chin in discomfort as he and Sam stood by the Impala. Amy was sitting, or rather lying on her back, in the car. Armed with some Danish pastries, she was all set to go. Worldly possessions meant very little when you were a couple of hundred years old.

"Dean, she's a nuke for monsters. What if Crowley finds out that there's a unicorn on the loose, killing off monsters?"

"She's killed one. One monster!" Dean held up a finger just to that there was no mistake about just how many monsters this particular unicorn had slain.

"Crowley's killed for less. You want that on your hands?" Dean threw up his hands in a frustrated gesture as he groaned, walking around the car. "Fine."

"Let's just take her to the bunker, figure out where else she can stay to be safe, and this whole thing will be over before you know it." Sam tried to comfort his brother with those words as he got into the car with a smile. Dean simply grumbled under his breath as he opened the door, sliding into the car.

"Yeah, like it's ever that easy."