Title: Two of Every Kind
Author: Nikoshinigami
Fandom: Sherlock
Characters: John/Sherlock, Mycroft
Warning: PG-13, AU, illness (Sherlock), character death (Molly)
Length: Novella
Status: Completed
A viral outbreak has caused the world to take doomsday precautions. While the best and brightest are locked away in the Ark, the rest of humanity has only death as a comfort to the pains of infection. John and Sherlock must either survive or die, but neither option is the easy way out.
AO3
A very angsty and apocalyptic story. I feared for Sherlock for some time. Great series though the last instalment is rushed and not as finely written.
Same author as:
The Circle of Fifths
Naked, Stripped, and Raw
The Ichor of Talos