A Questionable Client(2013)

Ilona Andrews

In a world beset by magic waves, Kate Daniels works as a mercenary. She is tired, hungry, and there is foul-smelling blood on her boots. All she wants to do is to go home, but when Mercenary Guild offers her a job she can't refuse, she finds herself protecting a man against Russian wizards.
In this ‘intro’ to the Kate Daniels world, we meet the extremely ‘shifty’ Saiman for the very first time, when Kate takes on the task of serving as his bodyguard to protect him from some very determined—and dangerous—Russian wizards.

This story was originally published in the anthologies Dark and Stormy Knights and Magic Graves .)
Included in Small Magics.