This fic is a crossover with Glee and Supernatural, with the main pairing being Seblaine and most focus on the Glee characters.

It begins with Supernatural episode 4x22 Lucifer Rising and continues until 8x23 Sacrifice. Supernatural characters will appear.

Summary: Sebastian is a high-ranking angel sympathetic to Castiel's plight. Blaine is Crowley's right-hand man. How will circumstances (and those damn Winchesters) bring them together? Can Heaven and Hell fall together?

Paradise Lost

Chapter 1: Lucifer Rising

Blaine grinned. Everything was falling into place. His master had risen. The Winchester boy proved worthy of the task fate handed him. A new day was dawning and Blaine would surely be rewarded. Crowley, his superior, gave him simple instructions: make sure the first seal is broken, do whatever you can. And so he did. Hell was his home, and in his home he owned everyone. Getting Dean Winchester to break was easy. Getting him to torture those torturing him was as easy as breathing. Blaine was successful.

He returned to Earth in glorious joy. At last things were going his way. All was well. He is risen, hallelujah, hallelujah.

Sebastian stood in the Control Room, if it could be called that. He was summoned to hear the news he'd been expecting. Lucifer had risen. The apocalypse had begun. He'd been prepared from this moment his whole existence, but even then he wasn't any less shocked. He looked across the room at Rachel, his partner, and Hunter, a rising cherubim. Rachel looked calm while Hunter seemed angry. Sebastian couldn't read him. Hunter was warrior, designed to be so, and was climbing in the ranks. Any display of emotion now could tarnish his reputation. Sebastian wished he would stay in line. He looked away from the angel and to his superior.

"As you can tell," Naomi began, "the time has come at last. The time our Father prepared us for."

"He didn't prepare us well. We haven't seen Him in ages," Hunter argued. Sebastian was shocked at his briskness; no one spoke to Naomi like that, and no one, no one, spoke of their Father's absence.

"We don't know why He left, but we must follow His plan," Naomi said sternly, putting the cherubim in line. "And because of this we are forced to fight a battle we had not anticipated." She looked to Nathaniel, her partner. "Someone is trying to stop God's plan."

"Winchester," spat Rachel, her voice venomous.

"Yes, but sadly one of our own as well." Sebastian thought she didn't sound too sad. "Castiel." The room froze and the usual steady beat of wings stopped. Sebastian knew of Castiel, he viewed the angel as a bit of a mentor to him, but did not know of his association with the Winchesters and their mission. He suddenly felt sick.

"We must stop him," Rachel said. "I volunteer to do so." She stepped in front of the group.

"Thank you for your enthusiasm Rachel, but I have to ask someone else. Someone more…convincing." Naomi paused to look at the angels in front of her, scanning for the perfect candidate. "You may be dismissed. I will send for the one I need at a later date." Sebastian returned to his Heaven, a high school lacrosse game. It calmed him.

Blaine wandered Earth for some time before returning to Hell. His newest vessel, a boy in his twenties, continued to fight against him. He laughed at the human's feeble attempts to match his power. Blaine suppressed the human and continued on his journey. He feared returning to Hell and facing his fellow demons. After manipulating Ruby he could hardly be popular. Her manipulation was essential, the only way to get Sam Winchester to complete the task of freeing his master. There was no way he could convincingly manipulate the boy; that was Ruby's job.

Blaine pondered on this until he reached an abandoned warehouse. He wasn't positive of his location, but a sign indicated he was in Ohio. In a moment of awe a blinding light covered the area, causing Blaine to shield his face. When the light receded he was faced with his greatest challenge.

Sebastian's ear rang with a summons. It was no doubt Naomi, though he would have preferred it to be Michael. He looked up to the archangel, leader of Heaven since God left, and hoped he could join his holy crusade. It was Naomi calling him, he realized when the summons called him to the Control Room.

"Sebastian," Naomi said, voice powerful. "I've called you for a favor."

"Anything," he responded, always the subservient.

"I need you to keep an eye on Castiel."

"I thought that was Zachariah's job."

"He is…no longer working with us." She seemed indifferent.

"Thanks to the fugitive, no doubt." Naomi nodded.

"Go to Earth and watch for Castiel. Bring him to Heaven at all costs. But watch out for the Winchesters. They have an angel blade." Sebastian nodded in consent, though annoyed with his task. He would much rather search for Gabriel, the missing archangel.

"But isn't he dead?" Sebastian asked. He'd heard whispers earlier in the day that his brother was killed by Raphael.

"He was, but I have reason to believe he has been brought back. By Him." Her voice was solemn. "Find Castiel."

"Anything."

"Thank you, Sebastian. You may be dismissed." Sebastian left Heaven to never return to it in a state of beauty.

Finding a vessel was no obstacle. The boy prayed for it, saying he was lost and needed holy intervention. Sebastian hoped that's what he meant. The boy couldn't be more than twenty-three with styled brown hair he probably spent too much time on. Not anymore. Sebastian wasn't interested in his vessel's grooming, though he did have to admit he'd chosen a handsome one. Taking over the body was a foreign feeling. He hadn't been to Earth since the Son's first coming. Now His Second Coming was imminent and Sebastian was back.

He appeared in a warehouse in a flash of light. He pulled his wings in and stood up straight. In front of him stood what he automatically knew as a demon. It wasn't a demon he was familiar with, but the stench sickened him. It was oddly familiar; perhaps he'd been a pagan god in the past. He made a move to smite him, to send the bastard back to Hell, but was stopped.

"Tsk, tsk, you're late," the demon taunted, cocking his head to the side.

"For what?" Sebastian hissed.

"You couldn't stop your own fallen angel from rising again, now could you?" The demon's voice was mocking and sing-song. "Now you're here to chase him back." Sebastian rushed to the demon, hand up in preparation to kill him, until he realized he could get it to help him. "I'm Blaine, by the way. I'm glad you seem so happy to see me," he teased. Sebastian stiffened and grabbed the demon's collar.

"Pleasure," he said darkly. "Now bastard, tell me," he hissed, voice booming, "where is the angel Castiel?