I know this one's really short, but I wasn't going to include it in the last chapter.
Chapter 13: The Fall of Albus Dumbledore
"Come to the Astronomy Tower with me, you two. Come on," Dumbledore said, walking towards the exit. The two put their wands down and follow him to the Astronomy tower.
"I know what this is about. Why you are here," Dumbledore said when Draco raised his wand again. His hand began to shake and he began to tremble and sweat.
"He'll kill me. He'll kill my whole family!" Draco said. "If I don't do this!"
"I can offer protection for your family, Draco," Dumbledore said.
"He'll kill her and her family too!"
"I can offer protection for your family and the Goodwin-Williams family, too, Draco."
"I don't want it! I'm going to kill you!" Draco shouted.
"The Dark Lord has chosen us!" Kassidy said, pulling up her left sleeve to reveal the Dark Mark.
"Go ahead. Kill me," Dumbledore said.
"I'll do it!" Draco said.
"Do it, Draco! Go on, do it already! Or I'll do it for you!" Kassidy shouted.
"Expelliarmus!" Draco shouted, and Dumbledore's wand flew from his hand.
"See, I'm unarmed. Go ahead and kill me, Draco, if you must," Dumbledore said.
"I've been allowing Death Eaters in through the Vanishing Cabinet in the Room of Requirement. I was behind the mead incident that almost killed Ron Weasley! I was behind the cursed necklace that nearly killed that one girl! It was all me!" Draco shouted, still shaking.
"I know you were assigned to kill me, Draco. And I know Kassidy has agreed to kill me if you don't," Dumbledore said. "I've been prepared for this moment. I can offer protection for you and your family, Kassidy and her family," Dumbledore said. That's the point when several Death Eaters showed up.
"Do it, Draco! Kill Albus Dumbledore!" Bellatrix said.
"I…"
"Do it!" Kassidy said.
"I… I can't!" Draco said.
"Fine! Then I'll do it! Avada Kedavra!" Kassidy shouted, pointing her wand at Dumbledore, killing him and causing him to fall off of the Astronomy tower.
"Kassidy Williams killed Dumbledore! Victory!" Bellatrix shouted.
"Can I do the Dark Mark in the sky?" Kassidy asked.
"Of course," Bellatrix said with a victorious smile.
"Morsmordre!" Kassidy shouted as she pointed her wand to the sky, the Death Eaters celebrating.
"How could you?!" Harry shouted as he entered the room. "How could you kill your own headmaster?!"
"I had to, Harry! I had to!" Kassidy said.
"Expelliarmus!"
"Crucio!"
The two wands connected, a golden ball of light connecting the two streams of light.
"What the…" Harry said.
"What core is your wand?!" Kassidy shouted.
"Phoenix feather!"
"Mine too…" Kassidy whispered as her wand vibrated, and she couldn't let go of it even if she wanted to.
"But I thought there were only two sold at Ollivander's!"
"Apparently there were three!" Kassidy said.
"Let go, Kassidy, let go!" Bellatrix was shouting. Kassidy broke the connection between the wands.
"How fitting that the wands of my enemies match cores with mine," Harry said.
"Shut up."
"Just you wait. You won't get away with this!" Harry said before the Death Eaters, including Draco and Kassidy, disappeared in puffs of black smoke.
"So, what are we doing next year?" Draco asked.
"Staying at Hogwarts, I guess. Unless the Dark Lord needs us to do something else," Kassidy said.
"Okay, but if something goes wrong, we're getting the hell out of there."
"Agreed."