The Study of Poisons by Maria V. Snyder

Fierce, determined, dangerous. No wonder her soul called to his.

As Chief of Security of Ixia, Valek has spent the last fifteen years keeping Commander Ambrose and his citizens safe. With his complex network of spies, informers, and soldiers, it’s his job to hunt down and capture criminals, including the intriguing Yelena.
Sensing there is more to the story of why she killed a general’s son, Valek arranges for Yelena to become the Commander’s new food taster, training her in the delicate art of detecting poisons. As mysteries and a devious plot to harm the Commander unravel, Yelena’s presence becomes crucial. Will her intelligence, stubbornness, and survivor instincts be a help to Valek’s investigation, or a hinderance?

A companion novel to Poison Study, The Study of Poisons reveals Valek’s side of the story. Return to the world of Ixia and discover just how the lovely Yelena got Valek’s cold heart pumping!