When Tom Riddle, of the diary, senses the dormant horcrux in Aster's scar, the two soul fragments merge to create a phantom being named Marvolo. Marvolo is stronger than any single horcrux, but still has to depend on the diary and Aster's magic to exist. Instead of becoming enemies, Marvolo takes Aster under his wing, protects her, even cares for her, and trains her to be the perfect servant of the Dark for when Voldemort returns. [fem!harry potter x tom riddle/voldemort]

Lord Voldemort stared at the cradle where there was not one, but two children where he had only been expecting one. He leaned forward, eyes narrowed. "Which one of you... is my supposed death?" Or Albus Dumbledore's warnings came to fruition. (Originally posted on AO3, but I thought I'd start posting it here too!)

I felt all the color drain from my face and dropped back onto the bed not sure I could stand. "You mean-...I'm a-... father?" It sounded like Ayumi was struggling to breathe, "Yes...I'm not calling to make you feel guilty...it's just...there was an accident, it doesn't look like I'm going to make it, and-." Her voice cracked, "I know you weren't ready for a family and its unfair of me to do this to you, but you're the only I trust enough to care for her..." Her? Tears welled in my eyes, "I have a daughter?"