Chapter 1

"Cass, please don't go, don't leave!

You don't get it, it won't work. Please.

Don't leave.

Cass."

Those were the last words I spoke to him, well pleaded to him, and he didn't listen. I saw the spark of clarity in his eyes as his plan became set in concrete; I knew that the moment his mind was made up I had lost him. There was nothing I could say to him to bring him back to reality, to make him see his impossible mission would lead nowhere. Then he left, just left me pacing in my own space, completely alone. I knew that I had to speak to Father, ask for his help, but I wasn't sure where he was, God, please help Cass see the errors of his ways and help him. An eternity seemed to pass as I stood praying to God, hoping he would hear my please, then I felt the awful pain hit my stomach and I knew I had to keep my promise. I had to look after the Winchesters.

The night air was cool and felt great on the grime ridden faces of the Winchester brothers. Their last hunt hadn't gone to plan and now their eyes were bloodshot and ash lined their lungs. Some of the cuts would need stitches but they wouldn't head to hospital, they would find a motel and sew themselves up with the first aid kit situated under the passenger seat, the more extensive first aid kit was in the trunk of the car next to the impressive tools of their trade. The Impala, the eldest Winchester's most prized possession, hadn't gone unscathed either. Three jagged, vengeful marks adorned the driver's side, veering dangerously close to the window's edge. The passenger window, now rolled down to allow entrance to the night air, was cracked and chipped – much to the owner's annoyance.

"I'm sorry baby," the eldest brother cooed to his car stroking the steering wheel with a calloused but gentle hand. He had made sure the palms of his hands were clean before taking hold of the leathered wheel.

"It's fine, Bobby will have the supplies and you can fix her right up." The youngest said, trying to calm his agitated older brother. It was then that the realisation hit him of what he had just said. The eldest brother's eyes shot a look to him and guilt and pain washed over him. Bobby had died only a few days ago and the pain was still raw, for both of the brothers. "Sorry," but it wasn't enough, sorry was never enough, not in their world. Losing Bobby was like losing a limb it was something they would never get used to. A moment of silence passed and the youngest, who dealt with his emotions better, mentioned that there was a garage close to their motel.

"I know, bloody Wendigo, I should have burnt him straight away in the first place." Was the reply he got back, bringing the conversation back to the night's events.

"I'm pretty sure it was a she," the youngest said with a slight shrug of his shoulders but, at the look of pure hatred pouring from his brother's face, he turned and looked down at the laptop on his knee. He knew better than to correct his brother on such a matter as it had destroyed the Impala.

"What, can we not have one night of rest?"

"No, not with Dick on the prowl, we need to keep ourselves sharp, focused. We need to follow every lead that's thrown our way."

"Right, so what's our lead tonight?" asked the older brother, wiping the back of his bandaged hand over his forehead, the white material turning a dusty grey.

"Three men and a woman have all committed suicide in a small town just outside the boundaries of Phoenix."

"And?"

"Dean, all happened within the past month after admitting to their partners that they had been having an affair." Dean whistled and glanced over to his brother. There was a hint of a smile on his swollen lips.

"Really? Do you think they all had some sort of pact? Or just took suggestion from the first?"

"I don't think so; supposedly they all claimed to be having an affair with someone no one had heard of."

"So they all had sex with the same person, if their partners find that person they're going to be popular," Dean laughed, he wasn't a stranger to one night affairs with single or married women. His belief was that in their line of work, beggars can't be choosers.

"No, not the same person, one Mr Marc Henderson, the first of the suicide victims, claimed to have had an affair with a barmaid called Ellie Grey, police checked the pub, no known person." The youngest brother looked into Dean's hazel eyes and saw the amusement behind them. "The second, Alice Macintosh had an affair with one," he flicked through the files, "Daniel Harper, none of them exist."

"So, you don't think they just made up the name to protect the other person then?" Dean's brother shook his head and looked down at the laptop again as they fell into a silence. All that could be heard was the rumbling purr of the Impala which seemed to run less smoothly than before, complaining at the state she was in.

"Sam, I have to say I'm sceptical, I think they're just protecting whoever they've been sleeping with and that's that." Dean shrugged, his eyes now set on the road. He was weary, fatigue starting to pull on his body. The lights whizzing by were starting to lull Dean into a false sense of security, his eyes starting to droop. A sudden rush of adrenaline kicked in and he shook his shoulder loose, the muscles screaming in protest.

"Well I think we should head to the motel catch forty winks and track down these Leviathans and not guys who can't keep it in their pants."

"Dean, I've checked dad's journal, I think there's something there." He reached into his rucksack in the backseat and pulled out a tattered leather book, the pages dog-earred and at odds. He flicked through the pages before finding the one which held a similar story.

"April 1993 dad investigated a similar happening, but it was more advanced than ours. Men and women were claiming to be having affairs with people no one had heard of and then committing suicide, around the twenty mark people started to claim they had been having affairs in their dreams, that demons were having intercourse with them whilst they slept. One woman even claimed to be impregnated by one of the demons before she committed suicide." Sam glanced over to gauge his brother's reaction.

"So what was it?" He asked.

"Dad wrote Succubi and Incubi, but there are no drawings or ways to get rid of them. Actually, it seems Dad got out of there pretty sharpish once he found out what was going on."

"Well that's a lot of help." Dean muttered, his fingers clenching and unclenching around the steering wheel as he thought the situation through thoroughly. "I think we should just leave it and go after Dick."

"I don't think you should do that…" That was followed by a screeching of tyres as Dean's foot slammed the breaks. Everyone was thrown forwards before hurtling back into the leather seats. Within a blink of an eye Dean's pistol was in his hand turned to the back seat aimed directly between my eyes.

"Who the fuck are you?" Dean barked, his hazel eyes burning.

"Now, you wouldn't shoot me, you'd get blood all over the back of your Impala."

"I'll clean it up," he bit out as his eyes narrowed. "Now, who the fuck are you and how did you get in my car?" Even though he was tired he didn't faulted in his reaction time.

"Is he always like this?" I asked Sam, crossing one of my legs over the other as I leant back. Sam glanced over at Dean with a slight amount of fear in his eyes, not so much fear as anxiety. There was no reply so I simply shrugged. "Fine, my name is Leilah and I appeared."

"What do you mean you just appeared?"

"You know, not here one second, here the next." I smiled and looked at him expectantly, wondering if he could put two and two together. The fact that his facial expressions didn't alter told me he hadn't worked it out. "Jeeze, and I thought Cass was a bit slow." That got their attention.

Dean whipped his head to the side slightly in shock to see if Sam had heard it too and Sam's jaw dropped. That was enough confirmation for Dean, he had heard correctly.

"Wait, did you just say Cass, as in Castiel?" Sam stuttered in disbelief.

"Yep." I couldn't understand their shock, they knew Cass as well as me, well maybe not quite as well as I knew him.

"How'd you know Cass? Is he alive? Where is he?" I looked down slightly.

"I don't know, the last time I saw him he was in search of Purgatory, so I don't know. I can't find him though." I glanced at my hands, twirling my thumbs over each other. "Are you going to move that gun, not that it'll do much damage if you accidently pull the trigger, or purposely pull it," I glanced up at Dean, "but it makes me feel uncomfortable I quite like this vessel." I smiled and Dean gave an apologetic smile before stashing the pistol beneath his seat.

"Let me guess, angel buddy of his?" I nodded in Dean's direction. I saw his shoulder's relax, he didn't need to leap for the pistol at any moment, it wouldn't do him any good.

"So, Leilah, what are you doing here?" Sam asked whilst his eyes watched his brother.

"I came to look after you."

"From what?"

"The world, Cass made me promise before he left." I said honestly.

"What? Well what took you so long?" Dean barked. I felt his anger, it tainted the atmosphere and the Impala seemed to become suffocating. I felt the sudden need to curl back in my seat and this unusual feeling washed over me, maybe it was guilt, or maybe something else. I'm sure Cass said I would feel guilt the first time I met them.

"I take it Cass never told you in Heaven we don't have a thing called time. A second up there could class as a whole day down here. Also, I was in a deep prayer waiting for the right time and I felt now was right."

"So not when we needed you the most? When Bobby was dying, when he was shot, when we saw those Leviathans killing other people, not even when Cass was being torn apart from the inside by those Leviathans!" Dean shouted, his arm pointing accusingly. I wanted to cry out but stopped myself, but I couldn't hide the wince at Cass' name. Yep, definitely quilt. I did not like this feeling of guilt.

"Dean" Sam warned him.

"Well it's true!" He shouted.

"Dean, trust me, if I had known to come I would have. I just know what,…what Cass told me and he told me I'd feel it, when the time was right." I looked up at Dean and made contact, my deep blue eyes searing deep into his hazel ones.

"Fine," Dean said before cursing and turning around to grip the steering wheel again. "We'll go to the motel and then head to Phoenix in the morning."

"No, we can't do that." I said matter-of-factly.

"And why not?" Dean said through gritted teeth.

"Because, the Leviathan's have set a trap, trust me you won't get out alive."

"And how do you know that."

"I was there earlier this afternoon. But, I didn't have a form so they didn't see me. There's about twenty-five all waiting for you, you can't take them all on in this state." I could see the muscles in Dean's shoulders tense up under his leather jacket.

"Dean, we can't go, she's right. Let's head to Phoenix, do this hunt and then go hunt the Leviathans." Sam placed his hand on his brother's forearm, a simple gesture which I had never seen before but it caused Dean to relax and nod his head.

"Fine, but first we find another motel in the next hour."