Suso will not abide death by the hand of another.

Suso is a death goddess who aligns against Corsis and Nirva in the first two books of the series.  She is old friends with ViRauni and Welt, though she met each of them under different circumstances.  She strives to keep the Mosul Flute out of Nirva’s hands, which would grant the would-be empress the power to control the dead.  A turn of events that she will not abide.