London 1817. Maggie Collins, born into slavery in Maryland, whose mathematical genius and strength of mind can match those of a goddess, must build the world's most powerful and sophisticated machine—to free the lost land of Yount from the fallen angel Strix Tender Wurm. Sally, of the merchant house...
When emissaries from a world called Yount offer Barnabas a chance to redeem himself, he accepts their price—to voyage to Yount with the key that only he can use to unlock the door to their prison. But bleak forces seek to stop him: Yount's jailer, a once-human wizard who craves his own salvation, ki...