Mr Standfast is the third of five Richard Hannay novels by John Buchan, first published in 1919 by Hodder & Stoughton, London.
It is one of two Hannay novels set during the First World War, the other beingGreenmantle (1916); Hannay's first and best-known adventure, The Thirty-Nine Steps(1915), is set in the period immediately before the war started.
The title refers to a character in John Bunyan's Pilgrim's Progress, to which there are many other references in the novel; Hannay uses a copy of Pilgrim's Progress to decipher coded messages from his contacts, and letters from his friend Peter Pienaar.
Well, I did get it right that Cato and Catiline were enemies (see below)
Caroline