Title: Be Here Now
Author: Todesfuge
Fandom: Sherlock
Characters: John/Sherlock, Irene, Mycroft, OMC (James Moriarty)
Warning: NC-17, slash, illness (Sherlock), drug abuse (Sherlock), injury (Irene, John), PTSD (John), suicidal (John), amnesia (John), locked (John)
Length: Novel
Status: Ongoing
John Watson was already fighting demons when he and Sherlock met. With Sherlock's suicide, it all comes flooding back, forcing Sherlock to intervene before he's solved the persistent riddles of Jim Moriarty and his game. Together they find that something darker lurks behind Moriarty, forcing Sherlock, John, and Irene Adler into an even deadlier game with a much more dangerous foe.
AO3
Amazing series, for sure.
Todesfuge has got the ability to make the story seem really dense, no matter how long it takes for things to proceed. There are many facettes to this work that make it worthy to be read. There's revenge, love (mutual, unrequited, brotherly), anger, despair, a case of sorts, meeting old friends, saying goodbye to them, mental problems, health issues, recovery, ... and so on. Dense, as I said, but by no means overloaded.