In Edwardian era London, Gabriel Syme is recruited at Scotland Yard to a secret anti-anarchist police corps. Syme meets an anarchistic poet at a party and they debate the meaning of poetry. The poet argues that revolt is the basis of poetry. Syme demurs, insisting the essence of poetry is not revolution but law.We can't discuss the book's denoument here in the cover copy, but this title tempts us. Let us instead say that the book gave us an inevitable and moving experience as the investigators finally discovered who Sunday is.