Mine
It was rainy, completely overcast. It was nearly dark by now, the shadows almost hiding the bloodstains on his hands. That girl had bled so much. He had expected it, and it pleased him.
Potter had always been arrogant, even now, after she had pushed, pleaded, her fiancé to keep the blond man away, far away, and he still insisted that he could take care of her, that he loved her, that he would never let anything hurt her.
My words, the blond thought, My words, and she laughed.
She laughed humorlessly, her laugh preceding a stunner. He had laughed just before it hit him, and he had to start his search over. Not that it was hard, he knew everywhere she went, knew every single thing she did.
She still shied away from him, still. He had to do it, he had to, because no one else could have her, not if he couldn't have her. No one else could possess that red hair that used to fall to her shapely buttocks. No one else should admire that pert nose, or her full lips, that drew thin in anger, before popping back open to hurl a curse - magical or not - at the victim. No one else could see those eyes, her mesmerizing amber eyes that drew him in so easily.
No one else. He couldn't have her, so no one else could have her.
So he killed her.
He snatched her up like a thief would snatch a Galleon, and he quieted her screams for the moment. If she screamed, Potter might get her back and he couldn't let that happen.
He took her to the Manor, the hidden, Unplottable Manor. He told her one more time that she was his, that he would have her if she would have him. She spat at his feet.
His sight went red, and he pulled out the knife. He marked her, carved her, matching her screams with his own yells of fury and of possession. He carved his name in her, her name with his, the names of their children, the children she should have borne, had she not refused. He lost the names, they fled from his head, and then he gently, carefully, carved across her neck, in shaky, jagged cursive: MINE.
Finally she lay still, barely any skin left unmarked, all the names running together. He lay down next to her, his hands resting on her neck.
He woke up the next morning, rain pummeling the Manor, and stared at his bloodstained hands.
Thanks to the wonderful beta skills of Rowan! Yay!