Hello new readers! One thing I didn't mention in the description is that this is a Mystery with a lot of clues, the unexplained, that later come with solutions that should be able to be pieced together, as well as complex time travel. This fic should be read with a sharp mind ;) ! This also contains mpreg!Cas and some pretty dark stuff involving Heaven and experiments. There is very little smut in this, sorries!

Hope you enjoy! Please leave me a little review and I'll love you forever.

It wasn't unusual for Cas to be gone for days, weeks, months at a time. The last time Dean had seen the angel, he'd been bent over his brother's crumpled body, stroking his red-and-white striped arm with motions much too tender and loving to match the things he'd told them; He came at me, he tried to kill me.

Blood had trickled down his face, a garnet drop from his tear duct.

Dean was worried sick about him.

When Dean finally did hear the familiar flap of feathers, he felt his heart leap up to his throat. He was the only one awake in the motel room, Sam was passed out after a long day of trying to do more research on just what was going on in heaven; with all these angels acting like robots, and for some reason successful people all around the world were all turning up murdered.

Cas looked into Dean's face, his eyebrows taught and drawn together. His face looked different; concerned, a light behind those blue eyes. Nothing like the strange, controlled and emotionless expression he'd seen on the angel's face when he'd cried a bloody tear with his brother's body in his arms.

"Cas-!" Dean said, standing up swiftly and standing close in front of him, putting his hands on his shoulders. "I haven't seen you in weeks...are you okay?"

"No." The angel answered gruffly, his eyes flitting from side to side nervously, flicking from Dean's shoulder, to his ear, the collar of his shirt, his lips, his eyes. "I don't have much time. I have not been...I have not had much time to be myself lately."

"Be yourself...?" Dean asked, confused. "Are you talking about why you killed Alfie? 'Cause that sure as hell didn't seem like you, Cas."

The angel's lips pressed together, his eyes flicking down to the floor in shame. "Yes." Cas replied in a rough voice. "Something is awry in Heaven. They have a control over me, Dean." His voice was tight and just beginning to waver. He dipped his head like an ashamed little kid.

"How do we break it, Cas?" Dean asked quickly, his own fear writhing hot in his stomach. He squeezed the angel's shoulders. "We can't let them...control you again, Cas. You killed someone last time. The angel we wanted to rescue."

"I know." Cas's voice trembled this time. He finally lifted his eyes to meet Dean's, they were guilty as a dog's. Cas took in a sharp breath, red dripping down his cheek once again.

"Dean. They are calling me back. I don't have much time. It's difficult to resist." Cas hesitantly put his hand up to Dean's face, his index finger curled just a little, tenderly brushing just a little bit of the stubble on Dean's cheek.

Dean watched him with wide green eyes. Something was wrong here. Cas was acting like something bad was going to happen, either to himself or Dean.

"I may not see you for a long time." Cas said in a hushed voice, slowly bringing his arm back down. "Things in Heaven...it is no longer recognizable as my home. It is the worst I have ever seen it."

Dean's face felt warm and the soft touch of his finger still lingered on his cheek. "Tell me what's wrong. Tell me how I can fix it." Dean insisted, shaking his shoulders a little.

Cas's eyes met Dean's, the burning blue color innocent and sad as another red tear dribbled down the side of his nose and onto his cheek. Cas clutched at his jacket, fingers curling tight over the lapels. "The mind control...somehow, you must find a way to break what they have over me. Permanently." His face had gotten quite close to Dean's, his blue eyes narrowed and desperate. Dean felt themselves breathing the same air, their noses just a few inches apart.

"..Permanently?" Dean asked, slightly confused. "What's temporary?" He felt himself fumbling over his own words, his head swimming at the proximity.

"You seem to help temporarily." Cas explained. Dean felt his heart jump just a little as the slightly cold skin on the tips of their noses touched.

"Dean...I don't know if I will be me ever again." The angel's trembling voice unnerved Dean. But that thought quickly evaporated from his mind as the only thing he could think about were the lips pressed hard onto his, the hands on his shirt fisting the material and pulling Dean tightly against him.

Dean was so shocked that his eyes failed to open. One thought raced through his head; when he thought he was going to die, that night they thought it was the end of the world, he'd really wished he could have done the same thing. Cas's lips were soft, and very inexperienced and clumsy as they moved against his, but the pressure was hard. Cas obviously was not a good kisser, but Dean didn't mind. He found his own hand snaking behind Cas's head, combing through his dark hair.

The bloody tear pressed to Dean's face, warm and sticky and making Dean suddenly afraid. He pulled away.

"Cas..." Dean breathed into his lips, his eyelashes fanning onto his face. His heart was pounding hard and fast in his ribs. "...Tell me how to fix you. Tell me so we can have more time."

Dean watched as his blue eyes looked into his, scared, begging. His hands loosened from his shirt. "Stay away." Cas graveled. "Dean, get away from me."

"Cas..?" Dean watched as his features became stony, his jaw locking, his eyes had grown dull and his eyelids narrowed. Blood dribbled down the sides of his nose, down the lines of his face. It took a second too late for Dean to realize this was what he meant, that he was not himself lately.

Dean choked, the sharp taste iron spotting into the back of his mouth. Cas's face remained emotionless as his eyes flicked down to the silver blade plunged deep inside Dean's midsection.

Dean choked again, a gargle of blood in the back of his throat. "C-Ca.."

His body crumpled to the floor as the angel ripped the blade out of his body, staring at the red-stained blade in his hand with a bored expression, his lips set in a stubborn line.

Dean was still struggling to survive, breaths coming from his mouth in short gasps, red spreading in a dark pool on the floor from his stomach. His hands were firmly pressed the the wound, his fingers red and slippery as they tried to press down as hard as they could to stop the bleeding. "Cas." Dean choked. "Cas, please."

"Dean," The angel was struggling against the mind control, his hands violently shaking. This was not another double Naomi had created for him to slaughter. Cas could feel Dean's soul, his real soul, which was impossible to replicate. And the soul was growing dimmer.

Cas leaned down and placed his hands over Dean's dark and bloodied ones, and there was a bright, blue-white light that filled the room. Dean didn't feel pain any longer, and he felt the skin that had previously had the deep laceration was smooth and no longer had a deep, fleshy tear in it.

"I am dangerous, Dean. I cannot be with you. Even though I desire to." Cas still kept his hand over where the wound had been. Dean saw the glimmer of tears starting in his eyes.

"I'm sorry." Cas whispered, and brought up two fingers to his forehead, his memories erased. He disappeared with a messy flap of wings.

"You have failed once again, Castiel."

The angel's face was emotionless and blank as he stood in front of his Superior. A bit of blood dripped from his knuckle and fell in a droplet to the floor.

"You are no longer assigned to kill these humans, we will get other angels to do your job." Naomi looked pissed. Even after all that prep and training, he somehow was able to still break the control she had over him. She had no idea how it was possible; she'd implanted the mind-control device months ago, the cylinder that reached back from his eye into his brain to control him directly. He should have succumbed by now, but those damn humans somehow always broke her hold on him.

"You will be a loyal solider of heaven. I needed to implant a device to focus your mind, Castiel. I have reason to believe that very soon, you may be one of our most valuable angels." Naomi looked prim and proper as always, her hands clasped together and resting on her desk. "We must do these things to protect Heaven's tablet, Castiel. You know this. The Winchester's souls will be an essential addition to our new generation of heavenly warriors."

"Yes." Castiel replied, his voice monotone, his face blank.

"You are dismissed." Naomi waved him away. "Go see the angels in the Simulation Ward. Tell them you need more Training, and let in the man outside my office."

Naomi spread out the papers and plans for this new Heaven, and another angel stalked in after Castiel's stiff and robotic exit.

"Naomi." The man nodded and stood in front of her, he wore a finely tailored black suit, white shirt and thin black tie. His eyes were so dark that the pupils blended in with the irses.

"The tablet will be protected, no matter what it takes." Naomi announced, her voice strong and determined. "Program Conversion is already underway. Quite successful, in fact. Most of the human souls we've harvested and converted to angels have been very nice additions to our growing army."

Naomi licked her red-lipsticked lips before speaking up again. "I would like to inform you that you will have the honor of heading our duel project, Program Gemling."

The man nodded somberly. "I suppose drastic times must call for drastic measures."

"Earth and Hell are as they have never been before. All of this is simply..necessity." Naomi spoke again, trying to smile just a little. "This Heaven will be better. Stronger. There is no room for failure on your part."

"Of course." The man replied. "My team and I have already made sure the monster mutagens will work on in-vitro angels. This new generation of enhanced angel will be...well, for lack of better description, truly Heaven's crown jewels on display. The will be stronger than most anything we've seen."

"Perfect." Naomi finally smiled. "Heaven's little gems."

"I will make sure Program Gemling is executed flawlessly." The man with the dark eyes and perfect suit grinned back at the red-haired Superior. "You may call me the Jeweler."

Eight months later...

Sirens were blaring and screaming, alarms pounding the air rhythmically. A man in a black leather jacket with dark hair locked his jaw and his grey-blue eyes flitted from side to side. The man had the almost unconscious Castiel cradled tight in his arms, the angel's head flopping down to his chest as the man carried him with an arm tucked under his knees and another hooked around his back.

"Halt!" Angels commanded as they tore down the hallway. "You are not permitted to-"

The man sprinted another direction, he was going to save his brother even if it was going to kill him.

"Fuck," He hissed as he met a dead end. "Castiel.."

Cas groaned a little and stirred in his arms. "Brother Soloviel," Cas's voice was weak and quiet. "You should be protecting the Winchesters."

The man frowned. "Cas. They were killed, remember? I can't protect them right now." His eyes flitted from side to side, looking for an escape. "We need to get you out of here. Just hang on."

The wall began to crack and crumble down. Soloviel held tight to Cas as he picked his way through the rubble, pushing onward to the garden of Heaven. Green palm fronds whipped at them as they rushed through, pushing onward toward the center of the garden of heaven.

Castiel felt an ache in his chest, something was burning within his grace. Something that was not right, pulsating hard and draining his energy. The sirens grew foggier as they got further and further away, and exhaustion set in as the angel finally knew rescue was inevitable. He sunk into his arms, his head rolling limply to the side.

"Cas. Don't leave me now, bud." The guardian angel shook him slightly. He opened his eyes; they were no longer in heaven, rather, sitting on a bench that overlooked a pond.

"I don't have long." Cas squeezed his eyes shut. "They still have my brain under their control."

"I know." Soloviel gritted his teeth. "So hurry. Just tell me just what those sick fucks did to you, brother."

"They..they changed them." Cas managed to bite out. Something pulsed, painful and heavy and hungry, deep within his grace.

"Changed who?" Soloviel prompted. "Who, Cas?"

It was too late, because Castiel was gone once again.