Disclaimer: All recognizable aspects of this story are the intellectual property of JK Rowling. No money is being made from this story.
Treachery
Ginny rushed through the dark tunnel. Harry had disappeared again – not so unusual, these days; he refused to tell his friends very much at all. She'd known, though. She'd heard the pop as he'd apparated. It had taken her a couple of minutes to trace the direction he'd taken, the location he'd apparated to.
She'd discovered herself in a dark cavern – dry, and flat-floored with stone. A corridor had led toward some source of light, so she had followed it. She'd heard Harry begin to cry, and had begun to rush. Arriving at the large circular cavern, she paused in the shadows behind the columns that encircled the brightly-lit centre of the room. Harry was crying, but behind him – as yet unnoticed by Harry – stood Lucius Malfoy. There was a small smile of victory on his face, and, before Ginny could properly take in the situation, green light flew from Malfoy's wand to hit Harry squarely in the back. Lifeless, he toppled forward, his wand clattering to the side. Malfoy stepped forward and picked it up.
"Potter," he inclined his head toward the dark-haired boy sprawled on the ground. "Such a good job. Too bad you're too dead to appreciate it."
Something overtook Ginny. A roaring sound thudded in her ears, and red mist fringed her vision. Thought fled from her as her body began to move toward the blond man.
He looked up as she launched herself at him. He almost smirked, but then he felt a stabbing pain in his chest. The wands he had held clattered to the ground. Ginny stood, panting, in front of Lucius Malfoy. She didn't know exactly how she had crossed the few feet between them. Her hand was warm, and Malfoy was looking down between them. She followed his eyes.
The warmth on her hand was his blood. In her fury, she had thrust her wand straight into his chest. By pure, stupid luck she had missed his ribs, and perhaps even penetrated his heart. Shock numbed her feet, her thoughts, while adrenaline pumped through her, causing her to tremble.
Something dark on the floor caught her eye. Harry's hair. His face, flat against the ground. The fury that had propelled her across the room did not return, but tempered rage burned in her heart. Raising her eyes to Lucius' face – which was white with shock – she hardened her heart. Slowly, deliberately, she twisted her wand, and ripped it out viciously.
Blood gushed out, spurting with arterial flow. Malfoy fell to his knees, then fell sideways, away from Harry. Blood continued to gush out of him, pooling on the cold, grey stone and seeping into his expensive robes. Ginny stood for a moment, watching the horror she had perpetrated. She wiped her sticky hands on her robes, but they were still smeared with red stains when she looked at them.
Then she saw Harry again, crumpled on the floor. His destiny had been fulfilled. He was not supposed to die. He was supposed to truly live!
Ginny crumpled to the ground beside Harry, and cried her heart out.