Title: Bound by Loyalty

Rating: PG-13

Spoilers: Harry Potter- Pretty much books 1-4.

Buffy the Vampire Slayer- Seasons 1-5 and some of season 6.

Pairings: Buffy/Sirius Black, Harry/Ginny, Ron/Hermione

Summary: Buffy gets a letter inviting her to help teach at Hogwarts. Dumbledore tells her about the fight with Voldemort, and she agrees to help protect Harry Potter. While there, she learns things about herself that she never knew, and she finds a way to live. Meanwhile, Sirius Black can't stop thinking about the blonde Slayer that has suddenly invaded his life.

Disclaimer: I don't own any of them. Buffy goes to Whedon, and Harry and everybody in the Potter-verse go to Rowling. If you don't recognize anyone, they're probably mine. I do own the plot, though. Don't sue. Please.

Authors Note: Thanks to mika, kitty minky, Naitch03, fairieangel, kalandra, cat, and DeerInTheHeadlights for reviewing.

Mika: condensing means reducing. I condensed her life story, meaning I reduced or shortened it. Sirius did sound a little brainy with the Slayer knowledge, didn't he? Well, he's fascinated with Slayers, so he'd know a lot about them. Is there going to be Remus? Of course! It wouldn't be right without him. Thanks for reviewing.

Kitty minky: no on the whole Potentials become Slayers. The First never happened. Anya and Xander didn't get visited from wacky relatives or and older Xander. In chapter one, I explained that Tara and Willow had graduated from college and they're still a couple, so no Tara hasn't died. And I also explained that the whole Buffy/Spike never happened. There are too many stories out there that uses the same nicknames for Voldemort. I decided to try something different. Thanks!

So, here's the next chapter. This one pretty much consists of what's been happening in the Harry Potter universe. Well, here goes….

………………..(Chapter 8: Lord Voldemort)……………………

'I've become so numb I can't feel you there

I've become so tired so much more aware

I'm becoming this all I want to do

Is be more like me and be less like you.'

-Linkin Park 'Numb'

(9:45- Harry's Room)

It was dark outside, the moon and the stars lighting the lawn. Everything was peaceful out there. The lake was calm, the faint breeze barely rippling the water. Trees swayed to their own music, unheard by human ears. Lights were on in Hagrid's hut, and the giants shadow could be seen in the window. The outside world was calm and, for once, asleep. But not inside of his head. Emotions raged. Thoughts bounced back and forth. And for the life of him, Harry Potter could not fall asleep. He was dead tired. It had been a hard day.

Harry sighed. There were so many thoughts and feelings in his head, and they wouldn't go away. He looked out the window at the Forbidden Forest, shivering. That was one place that was never peaceful. Yawning, he lay back down on his bed. He still had an hour and a half before he had to meet Sirius with Hermione and Ron. Thinking about them made him smile. Then he frowned, his thoughts focusing on Buffy Summers.

Who was she? Dumbledore obviously trusted her. She was a pretty good teacher. But so mysterious. Well, Harry thought, I'll just have to find out myself. With that in mind, he fell into a dreamless sleep.

(Staff Room)

This is it, Sirius thought. This is when she learns the truth. Will she be able to handle it? Of course, you idiot! She's the Slayer. A Slayer. She's been through a lot. I wonder if she- his mind rambling was cut off by Dumbledore, who began the story.

"About 35 years ago, there was a boy named Tom Riddle, who later became Lord Voldemort. Voldemort is probably the strongest, certainly the most evil, wizard in history. 14 years ago, Voldemort was strong, very strong, and he was recruiting other wizards and witches to become Death Eaters. He picked Lily and James Potter, who were 19 and had a year old baby, Harry Potter. They refused, and ran. Voldemort was after them, so they chose a Secret Keeper. A Secret Keeper is someone that… well, keeps a secret, and the only was for someone else to find out that secret is if the Secret Keeper willingly gives it up. They chose a Secret Keeper and told him where they would be hiding. That Secret Keeper was Sirius," he paused.

Buffy looked at Sirius, surprised. He didn't look at her. She motioned to Dumbledore to continue his story.

"Well, it was him at first. Sirius suggested another friend of theirs, because he was the first person Voldemort would choose, and he knew the change would momentarily confuse the Dark Lord long enough to let James, Lily, and Harry get away. They chose Peter Pettigrew. But he betrayed them to Voldemort. He found them, and killed James. He tried to kill Harry, but Lily jumped in front of him to save his life. She died. When he turned to Harry, something extraordinary happened. The killing spell bounced off Harry and hit Voldemort. The spell hurt him, weakened him so much he had to run and hide. For ten years he hid. Angry and weak. He came back in Harry's first year and tried to get the Sorcerer's Stone, a stone that could give you everlasting health. He shared the body of Professor Quirrell, the old DADA Professor, but Harry, Hermione, and Ron stopped him.

In their second year, Tom Riddle came back. But not quite. His memories were preserved in a diary that got into the possession of First year Ginny Weasley, Ron's sister. She wrote about Harry, about how he was the famous Boy-Who-Lived, about his scar in the shape of a lightening bolt, acquired by Voldemort. Tom Riddle wanted to meet Harry, so he controlled Miss Weasley, had her write messages on the wall in chicken blood. Harry learned he was a Parseltongue, that he could talk to snakes. He kept hearing a voice, hissing to kill. Students were found paralyzed, and Hermione was paralyzed after she found out what was going on. Luckily, she left a not to Harry and Ron. It told them that the think paralyzing the students was a basilisk, a giant snake whose eyes meant death to anyone who looked into them. They have a paralyzing effect when they are looked at in a reflection. Because it was a snake crawling around, Harry could hear it speaking. Then Miss Weasley was taken down to the Chamber of Secrets, where Tom Riddle was feeding off of her life force, slowly becoming solid. Mr. Potter and Mr. Weasley went down to rescue her. Harry defeated the basilisk and prevented Tom Riddle from becoming real again.

In their third year, Harry found out that Sirius Black was his god-father, and that he had escaped from Azkaban, the wizard prison. He was there because he had been accused of killing Peter Pettigrew and 13 muggles." Once again, Buffy looked at Sirius in surprise. He seemed uncomfortable. "Then Harry learned that Sirius had supposedly been responsible for his parents death. When Sirius escaped, everyone though he was after Harry. Remus Lupin became the DADA teacher, and he had also been a friend of James, Sirius and Peter. He also thought Sirius betrayed his best friend. Harry, Ron, Hermione, Remus, and I became informed that Peter was the one that betrayed James and Lily, and that he was still alive, hiding in the form of Mr. Weasley's rat, Scabbers. It turns out that Sirius, James, and Peter was all Animagus. They could turn into animals, but nobody but them knew about it.

They captured Peter and was about to bring him to the authorities when they were captured. Peter morphed into a rat and ran away. Sirius was about to be given the dementor's Kiss, which would have taken his soul, when Harry and Hermione went back in tome. They got Buckbeak, Hagrid's Hippogriff that was about to be executed for attacking a student, and saved Sirius. Buckbeak and Sirius went into hiding. That was the end of year three. Last year was when Voldemort finally came back to power. We held the Triwizard Tournament. It's a series of test given to three selected seventh year students. One from Hogwarts, one from Durmstrang, and one from Beauxbaton. But something happened. Harry's name was entered when it wasn't allowed to be. I put an age barrier on the cup and no one under Seventh year could get his or her name into it. But Harry's got in. And it was drawn. Along with another Hogwarts student, Cedric Diggory. The tests began. At the final test, Harry and Cedric reached the trophy first. They decided they should both grab it at the same time. They did and got transported from Hogwarts.

It turns out that the trophy was a portkey. It brought them to Voldemort, his Death Eaters, and Peter Pettigrew. Cedric was killed, and Harry's blood brought Voldemort back to power. He was going to kill Harry, but Harry was protected by his mothers love. Mr. Potter got back to Hogwarts and our current Defense Against the Dark Arts teacher took Harry inside the school and tried to kill him. We found out he wasn't the real Alastor Moody, just one of Voldemort's Death Eaters who drank Poly Juice potion to turn into Moody. We got him in time and the imposter was sadly killed by a dementor. But Voldemort was alive and powerful again. And that brings you here." Albus finished, hen sat down. Everyone was silent once again. Buffy glanced down at her watch. 11:07. Wow, that lasted a long time.

Dumbledore stood up once again and spoke. "Well, it's late. Why don't we all get some sleep. The second day of classes is tomorrow, and we're all exhausted."

"Albus? I was wondering if it would be all right if I explained about this to Harry, Ron, and Hermione," Sirius asked, standing up as the rest of the Professors filed out, the last one Snape.

"It's all up to Buffy if she wants you to tell them what she is and what she is doin here. It is her story." They both looked at her.

"It's fine with me, as long as I can be there," She answered.

"Sure. Goodnight Albus," Sirius walked to the door.

"Goodnight Dumbledore, I'll see you tomorrow." Buffy followed Sirius out side, stretching on the way. She joined him at the door, and together they headed to the Great Hall.

……………………………….

Thank Goodness all the life stories are done. At least for now, that is. Thank you for reading, and don't forget to review! The next chapter should be up pretty soon.

Here's a sneak peek:

"So…people thought you killed other people, huh?" She blurted out without thinking.

And:

Abandoning professionalism, she tackled Mr. Invisible. She stared in surprise at what she saw. Or who.

Stay tuned!!!

-DevilsTears