Chapter One: Leviathan


When he wakes it is bright out.

He is on his back, the sunlight glittering off the water that envelops the lower half of his body. He is weak from the effort it took to pull this body back together. The essence of his brothers and sisters has long since been washed from his skin by the softly rippling lake. They have moved on from this place.

They have a plan. He must stick to their plan.

A voice calls from somewhere distant.

He sluggishly pulls himself up, unused to the empty feeling which contrasted with the near bursting sensation when his family had all been crammed into this one body. The voice shouts again and he turns his head. There was a man wearing a uniform, he was frowning. He watches the man, this human who is steadily encroaching on him. The mans words soon fill his ears.

'Hey! You can't be in there! What do you think you're doing?'

He looks at the man and stumbles forward, his legs still wobbly in their newness. The man in the uniform pauses before he continues, slowly now, any annoyance has left his face, now replaced with concern.

Something drips down the side of his face and he knows it isn't blood. The human balks.

'Whoa buddy, you okay?' he offers no reply. 'Are you alright? Hey man, answer me, are you hurt?' he stays silent as the man foolishly continues his journey forward. He hasn't eaten in so long. The temptation was there, he would ignore it for now. He needed to be somewhere.

He felt the grin slide easily across his face. Wide, teeth bared; he saw the uniformed mans face change. Saw him stop in his tracks. Fear clouding his eyes.

He moves quickly. Far faster than the human could hope to move. Soon the man lies on the rocky dirt below them, neck broken in two places, he chokes to death on his own blood a short while later.

He is still starving.


He is not alone in this body. He knows this, has known since before his brothers and sisters where expelled. The angel. The angel who opened the doorway and freed them; albeit unintentionally. The angel whose grace has been damaged, currently leaving him nothing more than a whisper in the back of his mind.

Castiel.

He feeds off the angels' sorrow, revels in his anguish, learns from his memories.

He must continue their plan.

And he knows just how to do it, but for now he hides- no. Not hidden. He is waiting. He is gathering his strength. Spending most of his time rifling through the memories of the angel, whose voice has been getting stronger as the days pass. He learns so much. Discovers secrets that make him laugh coldly, taunting the other being who resides in this body. The angel has tried -desperately- to shield himself and his thoughts, but the angel is weak. Weaker than he is. It's so easy.

He passes the rest of his time following the humans 'news'. Roman has done well. The hunters are no doubt convinced he is the 'head of the operation' as they call it. This amuses him as well. Everything is falling together flawlessly. It will be all too easy to infiltrate the Winchesters lives. To gain their trust.

While his brothers and sisters spread themselves across this 'powerhouse' of a nation, he will work his way into the brothers lives, into the arms of the only humans who pose a threat to their plans. He will destroy them from the inside.

It will destroy the angel too. To watch, unable to do anything, as he destroys everything.

A quiet rumble of thunder sounds in the distance, he laughs. Edging on hysteria as a silent scream echos in the recess of his mind.


He tracks the Winchesters down using the unwilling angels' memories as well as his own senses. It is easy.

He knows he is weak. He has not feed in many, many years. He will last a few more days, and he needn't wait long.

He has found them. In a small cottage rather far off the map. Thankfully the angels' memories reek of the brothers. He can smell them. Only the two of them. The other who frequents the angels' memories, the man called 'Singer' has been dealt with.


It is raining again.

How fitting. His clothes are as soaked as they were the day he woke in the lake. He shifts the muscles of his body's face. Into something akin to hurt, pain and desperation. The angel has seen it enough on both brothers.

He reaches to bang the wooden door. He only hits it twice before the door is flung open and a pair of narrowed green eyes and the barrel of a shotgun are pointed in his face. The eyes go wide with surprise and confusion. The short-haired man before him stares at him, taking in his features, unsure if he is real or a hoax. The angels' voice murmurs in the back of his head; he ignores it. He needs to get inside. He needs to make them believe.

He knows exactly the way to pull on the elder Winchesters torn and battered heartstrings.

He turns piercing blue eyes to meet green. Filling them with the most desperate of emotions he can muster, pouring all the unfamiliar and unwelcome feeling the angel remembers into his stare. He chokes out one word.

One word he knows will tear down any walls the green-eyed man will have put around himself.

One word before he rolls his eyes back and falls boneless to the floor.

'Dean...'

And he's in.


Author's Note: Um... I'm still iffy about posting this, but it's kind of been bouncing around my head for a while. It just really wanted to be written down. I, personally, think that the 'head Leviathan' should've stayed in Cas' vessel because I adored that ten second Leviathan!Cas scene and wish there was more. My first attempt at a Supernatural fanfic, so don't kill me.

I hope someone decides to like this and if they want me to continue, I'll definitely try, but for now I think I'll keep it as a oneshot.

Reviews and criticisms are welcome!

~DrHooksTowingandCo