There's little time to grieve the outcome of the Gluttony trial as she enters Invidia, a city of barely contained envy, where everyone wants what the other possesses. The competitors of the devil's trials are sent belowground with no special treatment and tasked to play Envy's favourite game, Heist of Haures. Below the city streets, new friends are found in unlikely places, and danger follows her like a shadow. All while Octavia attempts to steal a piece of the old world from Invidia's elite to secure her safety. However, in a city so covetous nothing ever goes to plan, and Octavia finds herself on a path to steal from the very heart of Envy's most treasured collection. It might just be the deadliest heist of her life.