‘The trouble began on a bitter November morning, when Alice Wyndham left her flat and found a box on the front doorstep.’

All her life, Alice has been haunted by visions of birds, and only her best friend Jen understands her terror. So when an accident leaves Jen in a coma, Alice is devastated – until the mysterious Crowley appears at her door and throws her a lifeline. Crowley reveals that the strange birds Alice has been seeing are not a figment of her imagination. She has the rare ability to see nightjars: the miraculous birds that guard our souls… And she can use her gift to find Jen’s departed nightjar – and save her.

But Alice has caught the attention of a shadowy faction who want to use her skills for less heroic deeds. They want her to hunt the magically gifted, with deadly intent. 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 to navigate this strange new world of dangerous magic, marvels and death cults in order to save her best friend – but soon she discovers she can’t run from the even stranger truth about herself…