A/N: I own nothing. Harry Potter and Supernatural belong to JK Rowling and WB. I'm just playing.

Time and Again

(2027)

Thunder cracked as the doors to the great hall of Hogwarts blew off their hinges. Hermione Granger- Weasley walked in with her surviving forces both wizard and muggle. Here she was; the last of the Golden Trio, leader of the Human resistance, and mother to her only living child. She gave her daughter Rose a quick nod as she stepped out into the hall to confront humanity's greatest enemy. She was tired, tired of fighting, tired of death, tired of loss. She pushed her bushy brown hair which was now starting to gray out of her face as she took in the audacity of the thing which sat in the Headmaster's chair.

"Son of a bitch," came a familiar gruff voice from behind her. Hermione allowed herself a small smile; Dean Winchester was one of the best fighters she had ever seen wizard or muggle, he was also her second in command and lover. "It's over Lucifer," he said to the angel inhabiting his brother's body once again, "Your army is finished, time to go back to your room." Hermione had of course heard stories of Sam and how great he was before just as she had spent many a night telling him about Harry and Ron. Because of him her daughter walked around with both a wand and a .45. She loved him, and in the random slim chance they survived this she was going to marry him.

"Dean," Lucifer said, "It's been a long time. I told you we would meet here, And Miss Granger, we meet at last. I'm sorry about your husband and son, it was truly regrettable." Dean looked angrily down the hall, "You've lost, so why don't you give me my brother back and fly on away." Lucifer smiled, "No."

Hermione gasped as Rose ran out wand drawn, "Haven't you caused enough death and pain? I won't let you keep doing it!" Rose thrust her want at him, "Avada Kedavra!" Dean flinched as a green bolt flew from her wand, He knew what that meant. This was a spell designed for nothing except to kill its target. To everyone's surprise Lucifer simply caught the green ball of energy, "That's very good. Excellent levels of concentration, ample skill, and a cohesive conjure. He threw it back striking rose in the chest. As Hermione watched her daughter fall lifeless to the floor Lucifer rose from his chair, "You're right!" he shouted, "The game is over." He took a step towards Hermione who was now cradling her daughter, "She posed no threat by herself, you didn't have to kill her." Lucifer knelt down and brushed her graying brown here out of here face, "But I did. I had to point out how hopeless it is to fight the inevitable outcome of death."

With a fluttering sound Lucifer was gone. The raid had failed, and to make matters worse her daughter was gone.

Once it was confirmed that they were the only ones left in the castle Hermione raised the light level in the great hall. Immediately she felt a sob grip her. Lucifer had taken her entire family. She loved Dean, but couldn't help but with that if she had to lose someone, she would rather it had been him than Rose. Without another thought she pressed her head into his chest inhaling the smell of whiskey and gunpowder, and cried until unconsciousness took her.

She opened her eyes as she sat up from the stone floor. She noticed that Dean had folded up his jacket for her to use as a pillow, and sat at one of the house tables going over the marauder's map. "Just how big is this place?" he asked, "We'll never be able to fortify the whole thing." Dean looked at her and she saw an immediate flash in his eyes. She knew he wished it was him too. It really was his style, every death he viewed as a failure in his part, and he was willing to carry the blame for Rose's even though Hermione knew it wasn't his fault in the least. "Hey Glenda," he said with a sad smile, "Welcome back." Hermione gave him a small kiss on the forehead, "Hey," it was all she had to say. In the seven years they had been together they had always had an unspoken way of communicating. For a pigheaded Yank muggle, he knew how to read her like a book. Seamus Finnigan looked up from the small radio, "Guys," he said in his Irish accent, "I think we're in trouble. Lucifer's made an appearance in America."

Dean's eyes went wide, "Where Seamus?" Seamus turned and issued a few orders into his radio, "Kansas? What the hell does the devil want in Kansas?" Dean went white, "Michael, he's going to release Michael."

"And that's bad right?" Hermione asked. Dean nodded, "Roast half the planet bad. We need to get there now!" Hermione looked grim, "It's too far to apparate safely, and without the Floo network we need a port key." Dean rolled his eyes, "I hate those things."

Within a few minutes they had a port key ready to go and Keyed to Stull Cemetery. Dean, Hermione, Seamus, and Claire each grabbed the hat "No," Dean said to Claire, "I can't ask you to do this." Claire Novak smirked at him, "Nor can you stop me Deano." Hermione sighed, "No time. Portus." Dean counted to three and he felt the hook around his navel. Next thing he knew he was spinning and just as he felt his little food coming back up, it stopped and they were outside the cemetery. They had arrived just in time for Michael to climb out of the cage still wearing Adam's charred meatsuit, "Oh crap!" Dean yelled as they turned and ran for it.

Once they were a fair bit away Dean sunk his head into his palms, "It's too friggin late. Congratulations to us, the apocalypse is back on." Hermione watched the sky darken, "We can't stay here." Dean looked around spotting a few undamaged cars. "Let's go," he said as he started walking.

With a quick thrust of an elbow the driver side window shattered, and in what seemed like a single movement Dean had the door open and was under the dash playing with wires. After a few tries the engine came to life, "Everybody in," Dean ordered to Hermione, Seamus, and Claire.

The car trip only took around an hour but with the somber mood it felt like it stretched on for days. "What da hell?" Seamus asked as the pulled up to an unassuming metal door set in a hill. Dean got out of the car and walked over to the door. He slid his key into the lock and obediently the door opened, "Home sweet home," he said as he rushed everyone in. There were gasps of aw as he led the small group into the bunker. "Ya live here?" Seamus asked inquisitively. "Brother and I did years ago," Dean answered, "You know, before."

Hermione looked at her group of mostly middle aged people fighting to save the world. "Beds are down the hall. The two locked rooms stay that way." Seamus and Claire went off to rest while Dean took Hermione by the arm, "Come on Mione, I got something for you to see." He took her around and watched her eyes widened and one of the largest supernatural libraries she had ever seen. "Where did you get all this?" she asked. Dean smiled thrilled to see just a spark of life in her eyes, "It was here when we inherited the place." Hermione walked around until she found the wizarding section. Looking through she gasped as her eyes fell upon a copy of Hogwarts a History. "Well if you had all this, why did you shoot me the first time we met?" Dean smiled as he wrapped his arms around her. He knew she was hurting, but she was also trying to focus on anything but the hurt. He understood, hell he advocated it many nights drinking heavily with her to wipe out the pain for just a little while. He even developed a taste for fire whiskey. "You said you were a witch and I reacted," he said softly, "I didn't know you were not the type of witch I was used to."

Hermione's eyes dropped to the floor as she felt the tears well up inside again, "Rose would've loved this, magic books and a wall of guns in the library." Dean held her as the crying started again. He wasn't big into chick flick moments, but he wouldn't leave her in a time of need. After a minute or two she let go of him enough to slip into a different part of the room. When he reemerged he had a bottle and two glasses. She didn't say a word as Dean poured two hefty glasses of what she assumed to be whiskey.

The witch took a large gulp of the glass Dean handed her treasuring the warm numbness that travelled down her throat. "Thank you," she said. "Nah, I get it," he replied, "To go through something so horrible that the only way to go on is to numb it." Hermione nodded as she finished her glass and held it out to him to refill it. He did so as he topped off his, "I get the pain of losing your family. It's the worst there is, and I've been to Hell." Hermione kissed him and she cuddled up to him. The whiskey numbing the searing pain to a dull ache, "I love you," she whispered to him. Dean inhaled her scent, "I love you too Mione. Wish we could've stopped this and spared you some pain."

The next morning Hermione woke up and winced as the artificial light hit her eyes. She found herself in one of the more comfortable chairs and with Dean's jacket wrapped around her like a blanket. Slowly and on unsteady feet she made her way out of the library following the smell of cooking… something. As she came around and into the kitchen she saw Dean cooking a huge breakfast. It was probably more food than she had seen in months. "Morning Glenda," Dean said as he kissed her on the cheek and went back to cooking eggs. "Where did all of this come from?" Dean smirked showing off his kitchen, "This place was built to withstand the end of the world, and has a pantry that can keep food stored forever practically. Usually try not to waste the stores, but I figured we deserved a little extra today." Soon a bleary eyed Claire joined them and went wide eyed at the sight of food, "Oh my God YES!" Dean smirked as Seamus followed and had a similar reaction, "I donno know what's going on, but I'll take it if I can put some of that in me belly."

They all sat at the table after their glutinous meal, "How long till they find us here?" Seamus asked as he leaned back. "They can't," Dean responded, "This place is demon, ghost, and angelproof. He may be the devil, but he's still an angel." Claire looked at Dean and Hermione, "Why don't we just bring everyone here then? There's enough room and enough food to last a long time." Hermione shook her head, "We can't just crawl in a hole and let the world end around us." Seamus laughed, "Why not, it's not like we been incredibly successful in stopping it."

Everyone froze as they heard the sound of footsteps echo through the bunker, "I thought you said nothing could get in?" Hermione asked Dean who had slipped his gun out from behind his back while she drew her wand. Dean was poised to fire when he saw a disheveled and bearded Castiel step around the corner. "Stupefy!" Hermione shouted sending Castiel flying backwards. Castiel stood up and straightened the tatters of a coat he wore, "Please do not do that again, it is uncomfortable," he stated.

"What the hell Cas? Last time I saw you were returning to Heaven to rally the rest of the angels. "We failed Dean. Heaven is nothing but death and ruins; Hell is much the same." He turned and saw his vessel's daughter, "Claire, I am glad to see that you are safe." Claire smiled sadly, "My parents?" Cas looked at her eyes, "I moved them somewhere they should be safe. After everything, it the least of what I should do for you and them." Seamus whipped out his wand and pointed at Dean, "You said this place was angelproof!" Castiel stepped forward, "It is. I am allowed in, but no others unless they are brought."

"Cas," Dean started as he pulled him into a hug, "I'm glad to see you buddy." Castiel gave a sad smile, "You as well Dean, but we have to move fast if we're going to save the world."

"What?" Hermione asked, "Lucifer was bad enough, but now that Michael's been released… we're doomed." Castiel nodded, "In this time yes it's far too late, but I've learned things as I crawled through the wreckage of Heaven and Hell. There is a point where we can prevent this from happening. We can stop the cage from opening." Hermione perked up, "We can save my family?"

Cas shook his head sadly, "Your daughter will return, but your husband and son are fixed points. The cage opening is a tipping point in time, but the events that led directly to it are fixed. No matter what you change it will still happen." A fresh tear rolled down Hermione's cheek, "So send me back so I can stop it," Dean said urgently, "Anything that'll at least give Mione Rose back." Castiel shook his head, "No Dean, this isn't for you to do. As one of the true vessels Michael will know the instant you are no longer in this time. We need someone who the angels will not miss." He raised his hand and pointed at Hermione, "Her." Hermione shook a bit, "Why me?"

"You're powerful and intelligent," Castiel replied, "But there is a price." Clair looked at the being inhabiting her father's body. She had forgiven him long ago. She unsheathed the angel sword that she had kept for years, "There is always a cost, but if it's worth the price then we have to try." Hermione nodded, "So what is the price?" Castiel looked at Dean knowing full well what his reaction would be, "Your body would be destroyed. I can't send you back completely without alerting Lucifer and Michael, so I will take your consciousness and overlay it into your past self. If either of them notice anything at all it would just be that you died."

Dean grabbed her arm and pulled her behind him, "Not just no but Hell no! What are you thinking Cas? Worst case scenario she dies and best case; she has to live through all this again knowing what's coming. That's cruel." Hermione stepped around Dean and pulled him down into a kiss. She poured every ounce of love she held for him into it. After a few long seconds she broke it and pressed her forehead to his, "Maybe this time you won't shoot me when we meet. I'll find you; we'll be together for better or worse." Dean kissed her again and whispered something in her ear. Hermione turned to Castiel and looked the disheveled angel in the eye, "I'm ready."

Castiel placed a palm on her forehead and closed his eyes. After only a moment bright light erupted from every pore on her body causing everyone to look away. When it faded Dean looked to see Castiel unconscious and Hermione nowhere to be found.

A/N: This is my first time pairing these fandoms. Please read and review.