In 'City of Souls and Sinners', a sequel to 'City of Gods and Monsters', Loren Calla faces new challenges when blackmailed into service by the Terran Imperator, who demands she use her seemingly depleted magic. Meanwhile, Darien Cassel, successor to Randal Slade, is drawn into Angelthene's criminal depths as he confronts both his legacy and surreal threats only he can perceive. Together, Loren and Darien navigate through their personal and political dilemmas, entwined with themes of betrayal, power, and identity.