Ishka Blackthorne was the sister of Grenden Blackthorne. Under the direction of Felisse, they operated the Blackthornes branch of the Jaguars crime ring with their mother, Shandala Blackthorne and the infamous Triel.
The Blackthornes hideout was raided by citizens and allies of the city of Eleusis. Although the Blackthorne family escaped their hideout the corpses of Ishka and Shandala were discovered at the base of the Eleusian Gatehouse some days later.