G.K. Chesterton
The novel follows Gabriel Syme, a poet who is recruited by a secret anti-anarchist police force. Disguised as an anarchist, he infiltrates a mysterious council where each member is named after a day of the week. Syme becomes 'Thursday' and discovers that the council-and its terrifying leader, Sunday-is far stranger and more symbolic than he expected. What begins as a spy thriller turns into a surreal, philosophical adventure about order, chaos, faith, and the nature of evil.