I'm playing a big knife at HP

August 1992

Severus Snape kept wondering why he had ended up in this situation.

At this moment, he was in a crypt where he couldn't see his fingers, and he didn't dare to light up or light a fire.The bottom of the cave was trembling, and there was a rumbling sound like rubbing rocks behind it, and a terrible scream like the wind in a deep cave sounded with fury.Snape quietly huddled behind a boulder, desperately trying to figure out whether the monster behind him had darkvision or not.

A flash of lightning struck and shattered the boulder. He instinctively rushed forward just before the lightning hit the boulder, narrowly avoiding the fate of being turned into ashes together with the stone.

Snape remembered - not only did this monster not have darkvision, it didn't even have vision, but it could sense the breathing of creatures and the blood flow in its body, which meant that it had nothing to hide from it.

Which means I'm dead.

As he searched for the next bunker, he, as Master of Potions at Hogwarts and Head of Slytherin, should be sitting comfortably in his cellar office right now enjoying his summer vacation.The reason why Snape wanted to ruin his life in this dark and damp cave was all thanks to that uninvited guest a month ago.

July 1992

From Snape's point of view, this was an ordinary day, and Dumbledore's summons was undoubtedly just a routine meeting.

When he stepped into Dumbledore's office, he first noticed the suitcase on the table - a dragonskin chest that looked weather-beaten, but was undoubtedly a high-level alchemy product - before he barely noticed the owner of the suitcase.

This is very unusual.Snape prides himself on being a person who is observant and extremely vigilant. He didn't notice that there was a stranger in a room right away. There is only one explanation: Potter has successfully put He developed a nervous breakdown.

Dumbledore's visitor stood up, smiled politely, and stretched out a slender hand: "Good day, Professor Snape, nice to see you again. Maybe you don't remember me anymore..."

It turned out to be her.This is even more unusual.

"Marciana LaRosa." Snape interrupted coldly, scrutinizing the young woman—whose appearance had barely changed from five years ago, and he didn't immediately recognize it—"85 Now, Gryffindor." He sneered, "Your face was on the headlines for a month, and I don't want to remember you."

The young woman saw that his hands were firmly hidden under the robe, and he had no intention of exercising his social responsibility and reaching out for her to grasp, so she naturally took them back and smiled.

Snape turned to Dumbledore, glanced at the suitcase, "Then Headmaster, can you explain to me, what brought our 'most famous' Auror in the last ten years to Hogwarts?"

"Marciana brought us a gift, and I think we need your professional advice." The old headmaster seemed to be in a good mood, with a particularly kind smile. "Martha, come, show Severus."

With a wave of Marciana's wand, the lid of the suitcase popped open, revealing a dark hole.Snape probed to look down, the bottom of the box rose rapidly, and soon became the same size as an ordinary animal cage, allowing Snape to easily see the contents inside.

"A snake? It's pretty big. It should be a reticulated python." Snape took out his wand and cast an inspection spell. "...It seems to be a magical mutation. It's still alive, but it looks a little dehydrated."

He raised his eyebrows and looked at Dumbledore: "I don't see anything weird. What, do you want me to value it?"

"That's the weird thing about it—it's still alive." Marciana shrugged. "When I found it in the Albanian jungle, it was going to attack me, and I cast a supposedly lethal spell at it."

"I deeply regret your decline in level. But you have come to the wrong place. Hogwarts does not provide secondary training services for adult wizards." Snape pouted.

Marciana ignored his words: "My spell was canceled by a protection spell, who would deliberately protect a wild snake? I was a little curious, so I checked it carefully, and I found that it had... other Something." She pursed her lips uncertainly, "I haven't seen it...but I feel that it is very evil and has a strong smell of death. I captured it alive, researched it for a while, and read a lot of information. But it's still only speculation, so I took the liberty of visiting Headmaster Dumbledore."

She looked up at Snape: "Please use the spell to detect dark magic."

Snape gave Dumbledore an inquiring look, raised his wand, and uttered several detection spells in succession.Various colors of magic lights lit up on the half-dead snake one after another, quite a bit like a neon tube.The snake had been tortured by travel and various spell experiments in the past few weeks, and had long since lost its will to survive. It didn't even struggle when Snape floated it up for a 360-degree observation.

When Snape finally finished his inspection, he looked up, silent horror in his dark eyes.

"Do you have any guesses, Severus?" Dumbledore asked mildly.

"Nothing of value. I've never seen anything like this... anything like this."

"Then I have one more question: have you ever seen this snake beside Voldemort?"

Snape looked up suddenly, and the blood on his lips faded away in an instant.He was silent for a moment as Dumbledore waited patiently for an answer.

"No, I'm sure not." Snape quickly returned to normal and said firmly.

"Okay. Thank you, Severus." The old headmaster sighed, "I can't give you the answer either, but I have some guesses. If you don't mind, Martha, please stay and discuss it with me. Thank you for your help, Severus." Dumbledore showed his usual expression of "bringing tea to see off guests".

Snape immediately stood up, nodded slightly at him, "Farewell, Headmaster." He turned to Marciana, "Miss Larosa." He nodded curtly at her, then turned and strode away .

Marciana watched his black back disappear at the corner of the stairs, exhaled lightly, sat back on the armchair, and showed a smile that was completely different from the gentle and decent smile just now: "It seems that Professor Snape The level of scientific research and teaching is as high as ever.”

Dumbledore praised the place very much and asked, "Oh? How do you say it?... Would you like some lemon sorbet?"

"Ah yes!" Marciana replied cheerfully, "I really need some sugar right now."

She took a small cup of sorbet and dug a big spoonful: "Because he is unlovable as always, but you haven't fired him yet. In fact, with Professor Snape's ability to step on people's painful feet , if you don't step on me, I must find it very funny. He said a total of three sentences to me today-two of which were calling me by my name-but he has offended me twice, sometimes you have to admire His efficiency."

Dumbledore also took a scoop of sorbet happily, "Severus is indeed versatile."

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Severus Snape thought Marciana LaRosa was odd.

The young woman he saw today was so different from the schoolgirl and young Auror he had known that it disturbed him.Snape didn't trust her innocence.Look at how she looks today!With long curly hair and wearing a conservative robe, he looks gentle and steady.She even wore high heels!And - unbelievably - pearl earrings and a necklace, she's only 24...or is she 25?

Snape was a firm believer that if a man behaved so differently from himself, he must have something up his sleeve.And at the same time he was convinced that he knew the true nature of Marciana La Rosa.

After a few years, she returned to England when Voldemort reappeared. What is her plan?

The author has something to say: Marciana LaRosa = MarcianaLaRosa, nicknamed Martha.

Dumbledore: Severusisamanofmanytalents :)

A detail has been changed here: Nagini was turned into a Horcrux by the main soul in the forest, instead of being turned into a Horcrux by the death of Bertha Jorkins as stated in Rowling's interview.