Navigating the treacherous deeps, Wren and company go in search of the miracle cure to restore the Chairman of the Guild's daughter from a living death. The Sweet Sisters though, have devilish designs of their own, however even they are unaware that Arthur, the android assassin is waiting in the wings! Concluding the amazing first series from the hit writer of Hinterkind and Scarlet Traces and the bestselling artist of New Deadwardians and Celeste.