ISO Tomarry fic Harry cures Lucius’ father of dragon pox
ISO Harry Potter/Tom Riddle fic. Harry is a time traveler who cures Lucius’ grandfather of dragon pox with necromancy. Was on A03, updated within last year. I think he does it in chapter 12? I thought I had bookmarked it, but I can’t find it. The next chapter he is caught and has to stop using aging potions and they discover he is Harry Potter.