Murder on an abandoned housing developmentand a web of dark secrets stretching back decadesLooking for clues about her sisters death amid the crumbling decay of a derelict and near-deserted London neighbourhood, urban explorer Connie Darke makes a terrifying discovery: William Stark, the estates architect and long-time resident, is hanging from the churchs vaulted ceiling.For DI Lew Kirby, theres no doubt that Stark was lured to his deathbut who wanted him dead, and why? As Connie begins a covert investigation, desperate to find a connection to her sister, Kirby soon discovers that the remaining residents have something to hide.Could there be a connection between Starks death and the unsolved case of Kevin Shires, a boy who went missing from the estate decades ago? And with Kirby and Connie both digging into the long-buried history of the estates darkest corners, what other secrets will be unearthed from the ruins of Grasmere?