"The Lightning Letters" by Ari_Murami,
part I,
part II and a
drabble.
First read: 10/2007.
Notes: 800 years after Harry Potter saved the Wizarding World, a collection of letters written to him by his lover are one of the most famous literary works. The Lightning Letters' author, though, remains undiscovered, in part thanks to the carefulness that they went to keep both their identities a secret. But a young historian wants to know the truth and she's ready to go to new and unsuspected lenghts to do so.
I can't believe it took me so long to read this, it's been a Harry/Draco classic from the very beggining but the fact that it was about a time when both were death had always kept me away, the thing is, even though the letters aren't reproduced within, both characters are very much alive in here.