Arkana

From Glen Cook Wiki

An attractive young Voroshk sorceress, blonde and beautiful, who defects from Khatovar. She is very cool and aloof for much of the time, but is actually quite intelligent and eventually comes to respect Croaker and Tobo very much. She does make a break back to Khatovar after a while but is taken prisoner - healthy Voroshk women have become rare due to the Shadow invasion - and Croaker rescues her. At the very end of Soldiers Live she takes on the mantle of Annalist, sharing it with Shukrat, and hence joins the Black Company.