I was asked to write a fic on Tumblr where Sherlock has to babysit Mycroft's child and it went sideways

Complications in London lead to big changes for Sherlock

Post HLV - Moriarty has been dealt with and Sherlock is under house arrest at Baker Street when Molly Hooper discovers that someone may have come up with a way to kill several of England's high profile personalities. It's not necessary but it would help if you read the other stories in this series first.

Things get odd for Molly Hooper

Story starts immediately as HLV ends, Sherlock returns to England as all is not well. Neither he or Mycroft is prepared for Moriarty's first move and someone vital to London's Consulting Detective is in the crosshairs. I don't own the characters, those are property of ACD's estate, Gatiss and Mofatt. This is posted on Ao3 where I'm known as Stormweaver.

Mycroft and Sherrinford Holmes spend a night with the Met Charity

One year after the events in Shattered, Mycroft Holmes calls upon a friend to help him with a problem. What to do with Sherlock. References to drug use, not seen. Part of Pain is a Poison I digest Universe.

Set before the Events of 'Pain is a poison' - intended as part of that series. The day that Mycroft Holmes became the Iceman