Wow, this story by Enkidu has a really great Mycroft. Fragility is a ten-part fic based on the 2009 movie. It skillfully weaves in missing scenes that show off Mycroft, Constable Clark, as well as the Irregulars. Irene Adler is treated somewhat harshly, though the story does provide some information on her last husband (not Godfrey Norton) whom she divorced.
I really like this story, even though it's so angsty and sad. I hope there's a sequel that covers what happens in FINA and EMPT, but maybe Enkidu will wait until the second movie to see how Guy Ritchie handles everything.