To achieve the incredible, she must attempt the impossible.
All her life, Alice has been haunted by visions of birds. But when the mysterious Crowley appears at Alice's door, he reveals she's been seeing nightjars - the miraculous birds that guard our souls. And a shadowy faction wants to use her rare ability to hunt the magically gifted.
Forced to go on the run, Alice follows Crowley to an incredible alternate London to hone her talents. But can she trust him? Alice must risk everything as she navigates a dangerous world of magic, marvels, and death cults.