Ok, yeah, I'm going to be really simple about this and I'll delete it the minute I find this story. Basically in the story, Harry became this Dark Lord, who removed Severus's mark and replaced it with his own mark, which I think was a rose. Also in the story, he brought back the younger version of Tom Riddle, who was kind of possessive. So if you've read this story, can you tell me the name, it's driving me nuts!