It was after 2am when the rest of the house mates finally fell asleep and Melissa sat waiting in the garden
"OK so Spill" Dean cut to the chase as soon as he arrived with Sam and Castiel
"I'm an elf"
"Right sure you are and I'm a unicorn so you can just kiss my unicorn arse"
"That's no way to speak to me when I came in here to help you" Melissa stood and faced Dean
"So you say but why should we believe you?"
"Because you're still alive" her tone hinted that she was beginning to lose patience
"This isn't our world is it?" Castiel asked
"No this is a parallel world to yours"
"Melissa did you bring us here?" Sam asked
"No, it was witches"
"Witches don't have the power to do that" Dean argued
"Here they do" Melissa told him "if you think your world can be a scary place its nothing compared this world"
"I find that hard to believe, we face demons, ghosts, vampires and a whole load of other crap on a regular basis. How can your world be any worse than that?" Dean questioned
"There's no humans here.." Melissa began
"but.." Dean cut her off
"Your friends in there, yeah they're human but they're not from here. They really are your friends just without their own memories"
"Who did this?" Sam asked
"I told you witches"
"OK say we believe you but why?" Dean asked "why would witches from another world give a flying crap about us or our world?"
"Lucifer has been set free in your world, the witches here think that if he destroys your world they'll be able to take whatever's left for themselves"
"What?" one world isn't enough for them?" Dean asked
"They hate sharing it with us?"
"The elves?" Dean asked
"Yes so they killed most of my people so they could have this world for themselves but the rest of us went into hiding. They weren't satisfied with having most of the world to themselves and when they saw a chance of taking yours they cast some ancients spells to get you here so you were out of the way"
"So while we're locked up in here, Lucifer is destroying the world" Sam said
"Not yet he needs a vessel so there's still time"
"OK so how do we get out of here?" Dean asked
"The door between our worlds is..."
"The door Zachariah left thru" Castiel finished her sentence
"Exactly so you and your brother need to get yourselves voted off" she told Dean "then the whole spell will be broken
"Why are you helping us?" Dean asked
"I like your world, you may have evil there but there's so much good too"
"You've been to our world/ " Castiel asked
"Yes I travel between the worlds"
"Well answer me this" Dean said "if you like our world so much why stay here?"
"I left to live in your in your world but I came back when I found out what the witches here upto?"
"How do we know this isn't a trick?" Dean was still doubtful "maybe if we listen to what you say and get ourselves voted off we could be playing into whatever game this is"
"It's not a trick Dean" Castiel Said
"Why are you so sure?"
"Because of the way she looks"
"That's great Cas" Dean rolled his eyes "I'm glad you finally discovered an attraction to the opposite sex but just because you find her attractive that doesn't mean she's telling the truth"
"I meant the look in her eyes Dean" Castiel told him impatiently "It's the look of someone who has given up everything"
"Melissa what did you do to get into this house?" Sam asked "I'm guessing you can't just walk in"
"It required more magic than I have so I killed a witch and drank her blood to take her power, my people would disown me if.."
"If what?" Dean asked
"If I got out of this alive but I won't so it doesn't matter. I killed a witch and I messed with one of their spells. Either one of those things could get me killed. As long as I'm in here I'm ok but as soon as the spell breaks and all this disappears..." Melissa couldn't finish the sentence but she didn't need to.