Malice of Crows (The Shadow, Book 3)

The sequel to Conspiracy of Ravens and third novel in Lila Bowen's widely-acclaimed Shadow series.
The Ranger known as Rhett has shut down a terrible enterprise running on the blood of magical folk, but failed to catch the dark alchemist behind it. And now the Shadow refuses to let him rest.
Rhett must make the ultimate transformation if he has any hope of stopping the alchemist or fulfilling his destiny; he must become the leader of a new Rangers outpost.
But to save his friends, and the lives of countless others, Rhett will first have to lead the Rangers on a mission more dangerous than anything they've ever faced.
The ShadowWake of VulturesConspiracy of RavensMalice of Crows