New fanfiction guys! I hope you like it.
Disclaimer: I don't own Harry Potter, just the plot and my OC.
Prologue
December 8th, 1980.
Lily Evans had a bad feeling and she knew Sirius had too, she just didn't know what about. Sirius had invited the red headed to take a walk with him and Remus, the later left after half an hour because of an appointment with someone. A couple minutes after Remus left, Lily had started feeling that someone was watching them, apparently Sirius too.
The witch reached for her wand, her friend did the same; it was in time to cast a Shield Charm when a spell hit it a second after. Both started to run in the empty street, Death Eaters throwing deadly spells and the two friends casting Shield Charms.
Why they didn't Apparate? Honestly, they wanted to catch the Death Eaters and find out why they were following them.
Lily followed Sirius inside a building. The place was full of mirrors. Perfect. A spell hit one and backfired. The woman would have smiled in another situation.
Sirius started casting offensive spells while Lily casted the defensive ones. One second of distraction, which was all it took to someone Apparate beside her, casting the Killing Curse. She waited for it, but it never came, it hit a Death Eater ready to cast the Cruciatus Curse on Sirius.
"Take that, BITCH!" A feminine voice came from the Death Eater beside her. Lily knew it was Death Eater because of the mask. However, she recognized the voice from somewhere. Sirius, alarmed, turned casting a stunning. The Death Eater ducked, it hit a mirror and it someone else. "Are you off your rocker, Padfoot? I just saved your fucking ass!"
"Katherine?" He asked to the person in Death Esters clothes.
"No, it's Dumbledore. Of course it's me, you idiot!" She hissed angrily as she cursed someone coming close to them. "Now prepare yourself because I won't die for you"
"It's really her." Lily said rolling her eyes.
The fight continued for several minutes, maybe even an hour. Lily's moves became almost automatic, Katherine's, on the contrary, changed every second, as if she was sensing danger coming from another direction all the time.
Until she stopped. Curses stopped coming too. Silence fell in the room like a giant squid. Someone laughed.
A dark and cold laugh echoed in the mirror room.
Lily had never heard that laugh before, but she knew whom it was from. Shivers went down her spine.
Voldemort.
"I expected your brother to be the traitor. Not you."
"I expected you to doubt me. Luckily for me, I was wrong. You made my job easier, thank you." Katherine said honestly, a growl echoed in the room. "Tsk, tsk, tsk, someone didn't wake up in the right side of the bed."
"Avada Kedavra!" Katherine ducked as the spell came; it hit a mirror and went back to Voldemort, whom ducked as well.
"Someone's not in a mood for jokes." Sirius mumbled loud enough for the women to hear. Katherine chuckled.
"When is he ever?" Lily asked and the others chuckled.
"You two Apparate when I tell you to, okay?" Kat murmured and the two friends nodded, but Lily wouldn't leave her, even though she didn't like the girl much.
"What would your brother say about this?" Voldemort asked and the three went quiet.
"My brother doesn't make my decisions for me. He would've said to stay loyal and I would've said to shove it in his arse."
"Your brother was always the smart one." Voldemort said and Katherine rolled her eyes exaggeratedly.
"And I was always the pretty one, now tell me something I don't know." Kat said emphasizing 'now'. Lily and Sirius knew that they should've have left when she gave them the signal, but they couldn't just leave her there.
Apparently Voldemort noticed the mirrors use to deflect spells when he tried the Killing Curse for the first time because Lily noticed him watching their moves carefully while checking the mirrors. Lily just didn't know where exactly he was, but she was sure he knew where they were.
Then the Dark Lord did what she should've expected him to do. He pointed his wand to a mirror "Avada Kedavra" and disappeared soon after he casted the Killing Curse.
The spell hit a mirror near Sirius and then one far from them; it kept coming and going in different unpredictable ways. After several seconds, the red headed witch saw the spell coming on her way, without time to cast a Shielding Charm she waited for a fast death. It never came.
A body fell on the floor.
And it was not Lily Evans.
The woman opened her eyes, afraid and expecting to see Sirius dead one the floor because never, in a million years, she would have expected Katherine to sacrifice herself for her.
But that's exactly what happened.
Katherine Snape was lying on the floor, eyes closed, mask centimeters from her face, her dark brown hair over her face, unmoving.
"Kat!" Sirius yelled and kneeled by her body while Lily let the information sink in. "You can't be dead. You can't be dead. You can't just sacrifice yourself! That's a Gryffindor thing, not Slytherin!" The man pulled the young woman's body and hugged her.
"Why would she ever do this?" Lily asked more for herself than Sirius.
"Because she's an idiot." After one second Sirius eyes widened, he checked her pulse.
"That's useless, Sirius. No one ever survived the Killing Curse." The red headed said with tears in her eyes.
"Evans, check her pulse." The man was paler than ever. She kneeled by his side and did as he said.
Lily was expecting nothing, but it was there, weak and slow, but Katherine's heart was still beating. "Impossible"
"She always proved us that she's capable of everything, apparently cheating death too" Sirius chuckled softly and hugged her relieved.
"We have to go" Lily said and both Apparated out of the mirror room.
Harry knew that what he was about to do was wrong. No, wrong wasn't even the beginning. He would be invading the privacy of a teacher who was helping him, but the curiosity was too strong.
The pensieve had silver-white contents swimming in it. Snape's memories. Harry knew he shouldn't look, but Snape wasn't going to know. So what would be the problem? Harry started watching the Professor's memories.
"You shouldn't try to hex them, you know? That just makes them pick on you more." A girl with wavy dark brown hair said to an angry Severus Snape.
"They started it!" The boy argued. Harry looked around. They were in the Slytherin common room; he guessed by his professor's looks that he was in the Fifth or Sixth year.
The girl rolled her eyes, which were the same color of the ones of the boy she was talking to. "I don't care who started it. I know that James Potter is a prat, a hot prat, but if you ignore him. He'll see no fun in pranking you."
Harry remembered seeing her in a strange dream he had some nights before the Dementor attack. The memory changed. Snape was walking to the Potions class when a girl red hair and emerald eyes stopped him. Lily, she looked like she had been running.
"Lily, what happened?" Snape asked her worried.
"It's your sister. Remus went find Dumbledore. I don't know what happened, nor does Remus. Only Potter, Black and Pettigrew." She said quickly, her friend had murderous look in his eyes. "Madam Pomfrey is taking her to St. Mungos."
"That's it. I'll kill them now."
The memory changed again.
Harry looked around and glimpsed Snape a short way away, moving between the tables toward the doors into the entrance hall, still absorbed in his own examination paper.
Harry saw his godfather's head turning. He had become very still, like a dog that has scented a rabbit.
"Excellent," he said softly. "Snivellus."
"Leave him ALONE!" James and Sirius looked around…. it was one of the girls from the lake edge…. Harry's mother…
"Leave him alone," Lily repeated. She was looking at James with every sign of great dislike. "What's he done to you?"
"Well," said James, appearing to deliberate the point, "it's more the fact that he exists, if you know what I mean…"
"You think you're funny," she said coldly. "But you're just an arrogant, bullying toerag, Potter. Leave him alone."
"I will if you go out with me, Evans," said James quickly. "Go on… Go out with me, and I'll never lay a wand on old Snivelly again."
There was another flash of light, and Snape was once again hanging upside down in the air. "Who wants to see me take off Snivelly's pants?"
"One more move and you die, Potter." It was the same girl Harry saw in his dream and in the first memory.
"Snape. I thought you were in St. Mungos?" James asked coolly.
She smiled evilly. Harry had to admit, she didn't look like someone you would like as an enemy. "Funny you mention that. They informed me that I, by a miracle, survived a grave brain hemorrhage. Can you guess why?" Sirius and James paled at that, Harry's father more than the later.
"'Y-Yes" Harry never thought he would see his father stuttering.
"You're lucky my father doesn't give a damn about what happens to me, and that I would be sent to Azkaban for Unforgivables because there's nothing I want to do more. Now put my brother down, or I won't care about going to Azkaban at fourteen."
Harry felt a hand on his shoulder, he was seeing the real Severus Snape staring at him with nothing, but loathe in his eyes.
"If you speak of this to anybody, I'll make you wish you didn't survive the Killing Curse!" The older man's voice made Harry really wish that. The boy shivered and felt like he was swallowing an apple. "Out."
Harry didn't move, he was still in shock.
"OUT!" Snape yelled and the boy ran out of the room. A jar collided with the door as soon as he closed it.
The Fifth year was breathing hard "What just happened?" he asked himself.
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