Avada Kedavra
There was a dark look in her eyes. Dark and scary. Never in their lives had they seen eyes so black, so evil, especially not hers. She was a kind and smart girl, never would she turn against them. She loved them both, they were her best friends. Or so they thought. She abandoned them. Left them to die. They never thought something possible from such a loving girl. But that was it. The love that used to be in her eyes was gone, replaced with hate. She despised them and no one knew why. Not even she herself knew.
Ever since their first year they would do anything for each other. Now she would do nothing. They of course, still believed in their best friend. They thought they could bring her back to the light, the good. They were sadly mistaken. The Hermione Granger they knew was gone. Their best friend for 6 years was gone. In her place was a new girl, a girl who scared everyone. A girl whom everyone looked up to. A powerful, smart, and very dark girl. This girl was pure evil, while the first no longer existing girl was pure good.
They stared into her cold eyes as she stood on the side of the dark. The final battle a mere few minutes away. Voldemort himself to her right, Lucius to his. Draco Malfoy albeit reluctantly next to her. He was even scared of her. She had killed many, she had no remorse. She loved to torture the helpless, to hear the screams, to see the blood. It kept her going; it was her strength, her power, her passion. At this moment, though, there wasn't fear in his eyes. He had a brilliant façade, which he wouldn't allow the light side to see through.
There she was next to the Dark Lord, the dark mark burning black on her arm. She was his right hand man, second rank. Wand in her opposite hand, she was ready to strike. Her first target would be Ron; Draco's would be Ginny. They were all to leave Harry for The Dark Lord himself. The many death eaters behind them were waiting for the signal to attack, as were the many Aurors behind Harry.
Then with barely a flick of her wrist, it didn't take much to kill anymore, she spoke the two words Harry dreaded to hear from their once good friend. The words he didn't believe would ever be spoken by her mouth. The words that made him forget his belief in her. That confirmed she would never return to them. Those dreaded words, that wouldn't even cause her to flinch, killed his two best friends of six years that night. And soon after he himself…
"Avada Kedavra!"