A/N: It's a Riddlefic, and I would suggest you not read it if you need happiness.
Forever and a Day
Tom Riddle was not one to love lightly. There were those who said he was incapable of love, but they could not have been more wrong. If he loved you, you would be marked by it forever and a day. If he believed in something, that something would prosper. Tom Riddle did not do anything halfway, and he shrunk from nothing.
By the age of fourteen, he had committed three murders. He believed he had been wronged, and nothing in this world or any other could stand in the way of Tom Riddle's beliefs. He became only more determined, after the green light wiped the life from their bodies. He would never be hurt again.
Amidst the madness of teenaged hormones, Tom Riddle seemed untouched. If one looked closely, though, an undying flame could be seen burning in his soul. Her name was Jade, and from the very beginning, she consented to be his.
Yours, she whispered, yours.
He marked her, skull and serpent twined together, and she did not protest. She was his. He knew she would not betray him. She could not, for she was his in body, mind, and soul, linked to him forever and a day.
She bore witness to his secret rites, his summonings and blood rituals, and she kept her silence. She knew she was his. She bled on the cold stones for him, never uttering a word of protest.
She disappeared. Days after they left Hogwarts forever, she was gone. He knew she had not left him. She was his. He rose, passing silently through the world with only the blood to mark his passage, and he waited.
She came back to him, not of her own will, but bound, tied and held by his loyal followers. Her robe ripped, slanting aside to reveal the symbol of all he was, branded into the flesh at the base of her throat.
She works against you, they said, she sullies our name.
No, she whispered. Yours.
And he, in turn, whispered, Avada Kedavra.