Ghost Nails

Caina Amalas is the Ghost circlemaster of Istarinmul, the leader of the Emperor's spies in the city. Deadly danger stalks her at every turn, and Caina needs all the allies she can find. So when someone tries to murder a powerful magistrate under the roof of one of her allies, Caina must act. Because if she doesn't, the killer may come for her next...