The Life Debt Of The Lost Ones

After rescuing Fleur and Gabrielle in the Black Lake, Harry Potter sets off down a path no one anticipated. If navigating the strange world of magic isn't enough, now he was going to be forced to navigate a situation he didn't see himself being subjected to until he was much older. Triad fic, Gabi is slightly older in this fic and closer to Harry's age. I am not good at summaries.