In 1927, shocking upheavals have rocked Harlem's most powerful factions and left Elise Saint estranged from the reaper she loves, Layla Quinn. The Saint family empire is in decline, gangster-run blood houses peddle debauchery, and a dangerous reaper-venom drug has become all the rage with wealthy thrill-seekers. Elise is desperate to find her beloved little sister, Josi, who has gone missing in the chaos. Meanwhile, Layla contends with shifting alliances in the New York underworld, including Karine, an ancient reaper, and the gangster Nicoletta--both with scores to settle. And then a terrifying new threat emerges: a beast making swift, murderous rampages through the city, keeping to darkness while hunting reapers and humans alike. Layla and Elise are joined in purpose when they suspect the monster's origins are related to a far deeper mystery that involves Josi, Karine, and a disquieting new future for reapers. Soon, they will risk everything to unearth these secrets, where the shadowy boundaries between the dead and the living are even more treacherous than they imagined