Mommy Issues of the Dead — T.A. Pratt

This short story chronicles an early adventure of Marla Mason, when she was a young mercenary sorcerer doing dirty jobs in exchange for secret knowledge. The subterranean sorcerer Viscarro hires Marla to steal a certain item from one of his rivals... who just happens to be his brother. Soon Marla finds herself entangled in a dysfunctional family feud of epic proportions, and in danger of dying herself.