From the dark and twisted mind behind the podcast sensation The Magnus Archives comes a suffocating, socially charged nightmare that reveals how fear festers in the cracks of everyday life… Beneath the streets of London, it hungers… It's the hottest summer on record and the city is suffering. Prices are high, pay is low. And on one fateful morning five travelers find themselves trapped in a tube car deep in the London Underground.  It will change their lives forever.  By the time they leave the train they will be bound together as witnesses to a single horrific event. Something terrible, irreversible, and monstrous. Something hungry. But they can't remember what it is.   On their own, they each begin to experience strange dissociative events. Time gets lost. Friends disappear. Something stalks them in the shadows. They make an unlikely team, but to remember what they encountered that day on the train, they will have to work together. Because now it's up to them to understand what horror they saw – and stop it in its tracks before it drags everyone else down below.