A fear she can't escape and a desire that can't be tempered...Ten years ago, Perry fled her thrall contract to find sanctuary among the Nighthawks. In that time, she's become a respected woman of the Guard, and she's wanted Garrett Reed for as long as she can remember. But when a new case takes a chillingly familiar turn, Perry finds herself once again in the path of a madman…only this time, there's nowhere left to run.Out of their depth and racing against time, Perry and Garrett must learn to trust the desire sparking between them…or risk losing themselves forever to the darkness stalking London's streets.London Steampunk series: Kiss of Steel Heart of Iron My Lady Quicksilver Forged by Desire Of Silk and Steam"Edgy, dark, and shot through with a grim, gritty intensity, McMaster's latest title adds to her mesmerizing steampunk series with another gripping, inventive stunner."—Booklist, starred review for Heart of Iron