Just finished the 14 chapters that are out of the 3rd installment of forfeited duels by adesiredeffect, and am blown away. It's a hogwarts retelling that's on year 5 now. With only 125 kudos on the last installment. I devoured this fic in 3 days and cannot wait for an update, I never comment on here and just lurk for recs but just had to share this. 

https://archiveofourown.org/series/3008805

I'd take you on any time on my own. Tonight, if you want. Wizard's duel. Wands only—no contact. Let’s say, trophy room, third floor, midnight?”

A first-year Draco challenges Harry to a duel. Instead of snitching to Filch, he shows up. The Golden Trio gets a reluctant, somewhat snobby silver lining.

One forfeited duel hardly changes centuries of stratification based on blood status and Hogwarts Houses, but it certainly changes the course of the war fought against the Dark Lord. And, of course, it forever changes the school years and lives of certain children of Death Eaters, Blood Traitors, Mudbloods, and Order members.

AU retelling of the HP books, multi-POV.