Ghost Mimic

Caina Amalas is the Ghost circlemaster of Istarinmul, the leader of the Emperor's spies in the city. Powerful enemies hunt for her, and Caina must ever be on the lookout for new allies.

So when she stumbles across a plot to assassinate an influential emir, Caina must save his life.

Otherwise the plot might kill the Ghosts of Istarinmul...