"What now?" Dean mumbled to Sam. Only agreeing to give them back their weapons if they talked in a public place, they had taken Jane to nearby diner, and left her stuffing her face with french fries. "I'm not doubting she is who she says she is... but what's she here for? You're telling me she's been following us around in the shadows for the best part of fifteen years just to slip a couple protection bags under our pillows?"

"I think she's scared Dean... she's powerful we can see that. She doesn't know what's happening... whose been teaching her for the last ten years?"

"Yeah, well we don't have time to babysit some twenty year old kid!"

"Twenty-two!" Jane shouted out through a mouthful of food.

Dean looked shocked, his eyes widening he stepped even closer to Sam, "She has super hearing?!"

Sam gave a strained smile to Jane, who went straight back to eating, "You're just really loud, Dean."

Dean pondered this. Excepted it as truth and carried on with a nod.

"Okay, you're right we don't have time to look after to her but she might have been around when the darkness was released, we should see what happened."

They wandered back over and Jane quickly dabbed at her face with a napkin.

"Listen kid, we appreciate the help but everyone around us dies and we don't have to time to stop you from getting yourself killed or going rogue and killing us," Dean assured her.

"I can help,"

"We're sure you could but,"

"You can't stop me,"

"We can't but,"

"So you could either help me and I'll help you or I'll fight this fight by myself. All one hundred pounds and five foot four of me. Alone. In danger. Probably near death at all times."

"Listen kid, you don't wanna do this." Dean leaned forward, "The second you get involved with this you get put in danger and you probably die, anyway. You get the King of Hell, vampires, monsters, goblins, ghouls and anything that goes bump in the night after you,"

"As well as the darkness?" Jane spoke gutturally, "The darkness you let free,"

"Hey!" Sam reached out to defend his brother but Jane cut him off.

"This is my fight as much as it is yours and I am more powerful to you and more helpful to you then you even are to each other,"

"...We don't even know what we're up against here, Jane," Sam admitted.

"Okay... neither do I... but Castiel... him I think I can help,"

Sam and Dean already had Rowena in their custody... which meant they could keep her and use someone who may or may not be on their side to fix Castiel. Sam had made his choice already but Dean was less sure, placing his trust in another person was going to be hard. However, Jane was the logical choice over Rowena even if they hadn't seen her for fifteen years.

"Fine. You help Cas, we help you," Dean said, producing a pair of cuffs from his jacket. "But you wear these."

Jane sat in front of Castiel, taking in those bleeding eyes and the pulsating veins in his neck. Why did she ever think she could do this? She could heal a bruise easily. A cut was harder than a bruise. A break was harder than a cut and so on... but black magic?

"Okay kid, do your thing," Dean stood next to her, his gun poised at her temple. Sam had disappeared downstairs in order to keep an eye on Rowena.

Jane raised her wrists and jangled the cursed cuffs at Dean, "Hello?"

"Right, magic," Using one hand to keep the gun at her head, Dean used the other to fish into his pocket and find the key, quickly he unlocked the girl's hands.

"Okay..."

"Dean..." Cas moaned, the vein in his neck throbbed quicker and suddenly he doubled over in pain.

"Jane, if you wanna start earning brownie points now would be a good place to start," Dean yelled at her.

Jane ran through spells in her head despite the fact she had absolutely no prior experience with anything this level. A cold sweat enclosed her and she was frozen. Cats writhed in pain, screaming primally.

"Do something!" Dean demanded.

Jane drew her fingernails down her pale face as she watched this man she had promised to help struggle against his bonds.

"Mystica Potestates cerae et flamma , vocat per tempora," Jane began to chant and felt the familiar flow of warmth run up the underside of her arms but before she could come even remotely close to finishing the spell there was an almighty crack as Castiel ripped the arms of the chair he was sitting in clean off. Cas swung wildly, catching Jane across her face with the broken chair arm and knocking her out completely.

"Hey! Hey!" Dean tried to calm him but Cas ran straight for the door.

Dean edged towards Castiel, edged towards running back for Sam and edged towards helping the bleeding girl on the floor. This was all it took for Cas to be out the door and running.

"God dammit," Dean knelt down and cradled Jane's head in his hands. The dark brown hair around her forehead had turned black with sticky blood. Dean probed the wound and found the cut was shallow and small, just bleeding heavily and, to his amazement, he sighed in relief. Maybe it was her age... or the fact she was a girl... maybe it was because she reminded him of Charlie.

"God dammit!" He kicked the leg of the table. He knew this wouldn't work, how in the hell could he have believed that a twenty year old witch could undo what had taken hundreds of years to hone.

Sam rushed into the room, skidding to the floor when he saw Jane and Dean.

"What happened?!" Sam demanded.

"She didn't finish, Cas went wild and got free, I'll take her to one of the room, you get Rowena and the car."

Sam nodded, looking anxiously at the young woman, before turning to do as he was told.

When Jane woke up, she was alone. She sat up, her head spinning, gingerly she touched where she had been hit and was surprised to find it bandaged. The act of kindness left her crestfallen, angry tears pricked at her eyes and she hastily wiped them away. She had tried to use a power she never had and it had backfired immensely. Now, Castiel was in trouble and so were the Winchester's, especially if she had given them any hope that she capable of helping them.

Jane knew what she had to do.

"...Et ad congregandum...eos coram me." Her blood was set alight as she threw the matchstick in. Standing at the altar she had made, Jane prayed for this to work.

Jane flinched as a figure blocked out the warmth on her back.

"Hello, sweetheart,"

"Crowley," Jane affirmed.