Various
TOS
21562165+12 more
Shards and Shadows
Set in 2156, 2165 and 12 other periods
Twelve short stories that fill in more than two centuries of Mirror Universe history, from Empress Sato's reign to the fall of the Terran Empire and the rebellion against the Klingon-Cardassian Alliance. They cover all five shows of the time as well as novel series like Klingon Empire.
Paperback