There are seven members of the radical Central Anarchist Council who, for security purposes, name themselves after the days of the week - Sunday, Monday, etc. However, the turn of events soon cast doubt upon their true identities, for the man who was Thursday is not the impassioned young poet he pretends to be, but rather a member of Scotland Yard's anti-terrorist squad of secret detectives. Who and what are the true identities of the other days of the week? Chesterton unwinds the mysterious entanglements in his own inventive and lively way and then escalates the mounting nightmare of paradox and surprise, culminating in a shocking revelation. He probes the mysteries of behavior and belief in an all too human world.

Ⅰ. The Two Poets of Saffron Park

Ⅱ. The Secret of Gabriel Syme

Ⅲ. The Man who was Thursday

Ⅳ. The Tale of a Detective

Ⅴ. The Feast of Fear

Ⅵ. The Exposure

Ⅶ. The Unaccountable Conduct of Professor De Worms

Ⅷ. The Professor Explains

Ⅸ. The Man in Spectacles

Ⅹ. The Duel

Ⅺ. The Criminals Chase the Police

Ⅻ. The Earth in Anarchy

ⅩⅢ. The Pursuit of the President

ⅩⅣ. The Six Philosophers

ⅩⅤ. The Accuser

  Extract from an article

   by G. K. Chesterton in the Illustrated

   London News, 13 June 1936