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The Potion Mistress and the Half-Blood Prince	By : FonzFan Category: HP Canon Characters paired with Original Characters > General Views: 2096 -:- Recommendations : 0 -:- Currently Reading : 1
Disclaimer: See full disclaimers on each chapter

Chapter List
- 10
- 11
- 12
Disclaimer: I do not own any of the people (Dumbledore, Snape, Voldemort, etc), places (Hogwarts, etc), other keywords (Occlumency, etc.), and text ("") that belong to the wonderful world of Harry Potter, as they belong to J.K. Rowling. I am writing this story to entertain myself (and hopefully others) and make no money from it. The OC (Katherine) is entirely my own.
WARNING: Some rather disgusting details of death in this chapter. Just to let you know.

Chapter 11: Valentine's Eve Massacre
A week after the students returned, Severus and Katherine cornered Draco on his way to the dorms. But the boy would not yet budge on information regarding his mission.
Between Headmaster Dumbledore and Draco, Severus was becoming furious with both men's tactics. As Severus would argue with the boy, Katherine would try to coax their godson into telling them more about his plans. But neither strategy proved best.
Days turned into weeks and before long Valentine's Day was upon them. The school seemed to turn into a snogging frenzy, and Severus and Katherine seemed to be catching more and more students out after curfew. Detentions were given, points were taken, but it seemed to do nothing; and only became worse as the bloody holiday drew nearer.

As Thursday night, Valentine's Eve, rolled around, Severus was in the main hall, waiting for Katherine's arrival in order to start their corridor duty. He was early as always, and paced lightly in front of the doors of the Great Hall. Glancing at his pocket watch every now and then, Severus was becoming impatient, as the time drew nearer to nine o'clock.
'Where the hell is she?' Severus thought as he glanced at his watch again. But then he heard it, the fast clicking of heels against stone. He turned to see Katherine ascending the stairs at a rapid pace. Her cheeks flushed and she was panting from the run.
Katherine was wearing her black cloak and carrying her broomstick. She was glad to see Severus waiting in the main hall, for she knew he would want to know where she was going.
"Katherine?" Severus gave her a confused look, as he eyed the broomstick in her hand.
"Oh Severus…thank Merlin," Katherine said as she rushed to him. "I've been summoned. I have to go…" She continued, but as she turned to leave, Severus grabbed her arm and turned her back towards him.
"Be careful and contact me as soon as you return," he told the witch. Katherine nodded in response, before rushing towards the doors. Severus followed and watched her take flight, and head towards the main gates.
"Dammit," Severus swore, spinning around towards the stairs leading to the Headmaster's office. "Expecto Patronum," he hissed as his patronus leapt forth and dashed out of sight to deliver Albus the news.

Katherine flew as fast as she could towards the main gates. The bitterly cold February night, nipped at her face and hands, but it didn't faze her a bit. All she could think about was what the Dark Lord could possibly need her for.
Landing at the gates, she swiftly slipped out of the warded ground and disapparated to Malfoy Manor. As she arrived, Katherine unwarded the gate and briskly made her way to the meeting room.
Katherine entered the old ballroom cautiously, but to her surprise, she found herself to be the only one there. Not even the Dark Lord was present. Knowing what was expected of her, Katherine stood patiently waiting in the half-lit room.
Finally, a door opened to her right and from behind her mask, Katherine watched as the Dark Lord, followed by Bellatrix, entered the room. Katherine rolled her eyes at the latter, as Bellatrix trailed close to the Dark Lord, fawning over him.
"Katherine," the Dark Lord hissed, as he sat himself in the throne like chair.
"My Lord," Katherine murmured as he bowed and kissed the hem of his robes. She remained kneeling in front of him while the Dark Lord surveyed her form.
"Bellatrix, Katherine," the Dark Lord started as he petted Nagini's head. "I have brought you both here for one reason, and one reason only. To bring me Cassandra Vablatsky."
"Cassandra Vablatsky? The seer?" Katherine asked, still kneeling in front of her master.
"Very good Katherine." The Dark Lord nodded. "Yes, the woman is a powerful seer and it is rumored that she has recently had a vision about the outcome of the our cause.
"I want the both of you to find her and bring her to me, so I may extract the vision from her mind."
"My Lord," Bellatrix murmured, "Please My Lord, let me go on my own to retrieve her. Surely an aging seer would not be difficult for one to handle."
"I appreciate your efforts Bella, but I want you both to go," the Dark Lord hissed at the sinister witch. "Bring me the seer. Alive." With that, he rose and floated from the room. Bellatrix looked back and sneered at Katherine, who was now back in the standing position.
"What?" Katherine hissed.
"When we get to Montrose, stay out of my way and let me handle everything," Bella muttered as she put her mask on and headed towards the front door.
"I think not." Katherine retorted. "The Dark Lord put us both on the mission, and I do not intent to displease him."
"You will stay out of my way," Bella screeched, aiming her wand towards Katherine's person.
"We'll see about that," Katherine sneered. The two witches walked in silence to the gates, then disapparated to the small port town of Montrose.

Montrose was eerily silent as the two black-clad witches apparated before a small statue of Guthrie Lochrin, a wizard who was famous for his broom flight from Montrose to Arbroath. It stood in the center of the small port town that was located on the eastern shores of Scotland.
The sky here was clear, and a brisk-bitter wind was blowing in off the North Sea. Bellatrix mumbled something under her breath, before turning and heading off down High Street towards a small cottage. Katherine rolled her eyes, and reluctantly followed Bella.
The cottage was dark, as it was now well after eleven o'clock. Katherine chanted a spell to detect any wards before the two pressed on through the fence gate and into the small yard.
'Something's not right here,' Katherine thought, as she watched Bellatrix unlock the front door. Bella entered first, warily aiming her wand this way and that.
"You take the upstairs," she ordered Katherine. "I'll check down here."
"Whatever," Katherine huffed, as she made her way up the stairs to the second floor. Stepping easy on the squeaky floorboards, Katherine made her way from room to room, without finding anything. She sighed in frustration, as she realized there was only one room left.
'Maybe she went on holiday,' Katherine thought. 'Yeah right Katherine. A 103-year-old witch just picked up and went on holiday.' But her thoughts were cut short as she opened the last door.
The smell of rotten eggs, methane and mercaptans hit Katherine's nose, making her gag. Her eyes widened at the sight before her; a shriveled up greenish-blue and blistered body was lying on the bed. Cassandra Valbatsky was dead, and judging from the smell, for at least a week.
Katherine gagged again, and closed the door to the room. She leant back onto the door, trying to get the smell out of her mouth and nose, but failed. She felt like retching right there on the spot.
"Bella," Katherine gasped for clean air. "Bellatrix!"
"What?" Bellatrix screamed from the first floor.
"You said you wanted to deal with Valbatsky yourself," Katherine gasped again. "Well, I found her, so have at her." Bella bolted up the stairs and headed for the door that Katherine gestured to. She sneered from behind her mask, as she threw the door forcibly.
Bellatrix began gagging herself as she scrambled to close the door again. Katherine had held her breath, but the smell still got through. She watched as Bella's face went from a sickened-green to furious-red in the matter of seconds.
"THE DARK LORD WILL NOT BE PLEASED," Bellatrix shrieked, as she paced in the hallway.
"What, it's not like we killed her," Katherine retorted. "Did you look at the body? She has been dead at least a week, if not longer due to the cold weather." Bellatrix let out an aggravated scream, before turning her wand on the door of the room that housed the dead witch.
"Incendio!" Bellatrix yelled. The door caught fire, as well as the frame and bit of the ceiling.
"WHAT ARE YOU DOING?" Katherine shouted at the other witch.
"What does it matter. She's dead; she's no use to us," Bellatrix hissed, as she sent more flames at the walls and floor near the door.
"We could still take her body back to the Dark Lord," Katherine bellowed over the now roaring fire.
"He said he wanted her alive. And she isn't, is she?" Bellatrix snarled, as she bolted for the stairs, with Katherine following close behind. Once both witches were back on the main floor, Bellatrix aimed her wand at the stairs, shooting more fire at the carpet and the wood.
"Yeah well, you didn't have to burn the house down," Katherine growled at her as she head towards the door.
"Back off Dumbledore," Bella roared as she followed her. But the two witches stopped at the sound of three loud cracks. "OH SHIT. OUT THE BACK." She screamed, as the two turned and bolted for the back door.
Two more cracks sounded at the back of the house as well, as the two made their way into the back yard. Katherine and Bellatrix stopped dead in their tracks, at the sight of two Aurors brandishing their wands at their persons.
"Halt! You're under arrest," said a large-burly Auror. "Put your wands down." But the only answer the man got was the crackle of Bellatrix, from behind her silver mask.
"I think not. REDUCTO!" Bellatrix screamed as she waved her wand. The blast sent both Aurors to the ground in an unconscious heap. "Well, that was rather easy." She commented before a spell shot between the two. Katherine and Bella turned to see three more Aurors running at them.
"HALT!" an Auror screamed, before he was blasted onto his back. Katherine and Bella dueled the remaining two; Katherine rendered hers unconscious and turned to help Bella, but only saw a flash of green light leave the other witch's wand.
"AVADA KADAVRA!" Bella shrieked, as the spell left her wand and hit the female Auror in the chest. The woman fell to the ground with a sickening thud; her eyes bulging and her mouth slightly a gape. "Let's go!"
"MORSMORDRE!" Katherine shouted; her wand aimed at the top of the burning house. The immense glowing Dark Mark appeared in the dark sky, just before the two witches turned and disapparated into the night.

Arriving at the manor, the two unwarded the gates swiftly and stalked up the path towards the house. All the while, Bellatrix crackled as she removed her mask and walked ahead of Katherine.
Upon entering the house, the two found the Dark Lord sitting in his usual throne-like chair in the old ballroom. Katherine and Bellatrix bowed and kissed the hem of his robe as they knelt before him.
"Bella, Katherine," the Dark Lord hissed. "Where is the seer?"
"I found her dead upon our arrival my Lord," Bellatrix smirked. Katherine glared at the witch from behind her mask.
"Is this true Katherine?" the Dark Lord asked the blonde, but before she could answer he shouted again. "Legilimens!"
The Dark Lord saw, in Katherine's mind, the blonde witch checking the upstairs of the cottage, finding the dead seer, Bellatrix setting the house ablaze, and the duel between the Aurors. He withdrew from her mind violently, knocking her to her bum.
"CRUCIO!" the Dark Lord shouted. Katherine screamed, as the searing pain coursed through her body. She withered on the ground as the curse continued. Once it stopped, Katherine heard the curse again. "CRUCIO!"
She quickly curled up her body in order to endure the pain again, but it never came. Instead, Katherine heard the screams of Bellatrix beside her. Katherine uncoiled herself slowly, and resumed her kneeling position before the Dark Lord. Bella withered in pain for a few moments longer before the Dark Lord released the curse.
"You have both disappointed me tonight," the Dark Lord bellowed. "Get out of my sight." The two witches kissed the hem of the Dark Lord's robe once again before rising and backing out of the room.
Katherine heart was pounding hard from the curse, as she made her way hastily towards the door. As she reached the half way point to the gates, she was jolted in the back by a spell. Katherine spun around to find Bellatrix with wand in hand.
"You got me punished Dumbledore," Bella spat, as she aimed her wand again. A red light sprung forth, but Katherine easily deflected it.
"I did no such thing," Katherine spat back. "Need I remind you that we were both punished tonight. You're the one who…" But she was cut off as Bellatrix hurled another curse at her.
And it began. Bellatrix and Katherine began dueling violently; curses and hexes were flying everywhere across the snowy and icy grounds. Katherine managed to curse Bella a few times, but she could feel her magic fading from the Cruciatus that she had suffered earlier.
Then it happened; Katherine sipped on a spot of ice and fell to the ground. Her head made contact with a rock and her left wrist cracked under the pressure of her trying to stop the fall.
She groaned and lifted her head just in time to see a red light coming towards her, and rolled out of the way.
"Give up Dumbledore," Bellatrix shrieked, as she continued to fling curses at Katherine, as the blonde tried to stand back up. Another curse managed to hit her in the right knee, and she fell back to the earth.
"GET UP. GET UP YOU FUCKING COWARD!" Bellatrix screamed, as she waved her wand again. "SECTUMSEMPRA!" The curse hit Katherine on her chest and spread downwards over her stomach and upper thighs. She could fell the coldness of the blood, as it began to seep through her white blouse that was under her frock.
'If I don't get out of here soon, I won't survive,' Katherine thought, as she planned her next move. Quickly she raised her wand and sent multiple curses at Bella's person. The dark witch leapt out of the way, allowing Katherine enough time to make her escape.
She hoisted herself up from the frozen ground, and limped quickly to the main gates. Once beyond the grounds, Katherine disapparated quickly; there was only one place she knew that Bellatrix wouldn't follow her. Hogwarts.

She apparated straight to the front gates and unwarded them swiftly. Katherine dragged her body through the entrance and began to make the long trek back to the castle. The grounds were eerily quiet, as she heaved her bloodied, wounded body closer and closer to the front doors.
She knew Severus asked her to contact him once she returned, but it was too early to go to him and her body needed immediate attention. She slowly made her way inside the castle and down the dungeon stairs.
Katherine was now dragging her feet slower and slower upon reaching her private quarters. She unwarded the door and pushed her way inside. The room was dark and damp, and the cold seemed to freeze her lungs.
Blood was now dripping down her forehead from the spot that she had hit on the rock. Her chest throbbed and her arms felt like dead weights. It was now getting harder to breath and her vision began to blur.
Katherine was only a few feet from her storage cabinet, that housed all of her personal potions, when she collapsed to the stone floor, and let the darkness surround her.

Disclaimer 2: -Cassandra Valbatsky (1894-1997) was a seer mentioned in the books and was featured on the Chocolate Frog cards.
-Montrose is a small port town on the eastern shores of Scotland (for real). In the books, the town is home to the Montrose Magpies and to *Guthrie Lochrin, the wizard who is famous for his broomstick flight from there to Arbroath in 1107.
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- 12
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The Potion Mistress and the Half-Blood Prince