To save her sister, she must stop a silent killer. . . . Protecting Atlanta from the off-world criminals of Underground is tough enough, but now Detective Charlie Madigan and her siren partner, Hank, learn that the addicts of the offworld drug ash have begun taking their own lives. Ash makes humans the perfect vessels for possession, and something or someone is leading them to their deaths. Charlie is desperate to save her addicted sister, Bryn, from a similar fate. As New Year’s Eve approaches and time runs out, Charlie makes a deadly bargain with an ancient race of beings and embarks on a dangerous journey into hellish Charbydon with Hank and the Revenant Rex to save Bryn and make it back before it’s too late. Only, for one of them, coming home means facing a fate worse than death. . . .

The electrifying sequel to the acclaimed urban fantasies The Better Part of Darkness, The Darkest Edge of Dawn, and The Hour of Dust and Ashes!Between life and death lies a chasm of pain beyond imagining. . . . Elysia may be a heavenly off-world destination, but beyond it, in the siren city of Fiallan, the Circe have punished Charlie Madigan’s partner, Hank, into a torturous state between life and death. With all the proper legal channels cleared, Charlie heads to Elysia, not knowing what she’ll find, or if she’ll ever see the siren again . . . while at home, jinn crime boss Grigori Tennin has begun an all-out hunt for the divine being Ahkneri. Tennin’s tactics set off a chain reaction that puts Charlie in the crosshairs of the shadowy creature known as Death, and stirs Ahkneri from her long sleep—and if Vengeance awakes, Atlanta will never be the same.