Turn (HP/DM, NC-17) by
saras-girl I came across this story after I read a recced fic on this site and was just browsing around the most recent uploaded fics. What a treat to find such a gem, though! It's long (300k words), and has an amazing plot. Sure, it's been done before (heck, I've even written a similar plot before): Harry falls into an alternate reality and sees what would have happened if he'd done something differently in his past. Once returned to his own world, he sets about making certain changes in his life.
Yes, the plot may sound familiar, but believe me, this story is masterfully written and the plot perfectly executed. The writing, the details, the characterization, the humour...it's all brilliantly done. A true recommendation for Harry/Draco enthusiasts.
On a different note: I've been rereading a lot of classics over the last couple of weeks. Mostly Snarry. And I can say that even after all these years
If You Are Prepared still makes me cry my eyes out. I mean, seriously...I've read this story when it was still a WIP, I knew what was coming, and it still completely crushed me. Though, I can now also say that in my opinion it's still one of the best Harry/Snape fics ever written, even after all this time.