Darkness at Noon (Arthur Koestler, 1940)

I liked this quite a bit.  Koestler was Hungarian but lived in various countries; this was published in English while he lived in England.  He was familiar with the Soviet system and had spent some time in a Franco prison in Spain in the 1930s.

The novel is set in an unnamed country, but it's obviously Russia - with reference to 1930s show trials.  Protagonist is Rubashov - a hero of the early Bolshevik days.  But now "No. 1" - meaning Stalin - is purging the old guard, the military, the intellectuals, etc. - welcome to 1930s USSR.

Rubashov communicates with the next-door prisoner (a Czarist officer) via a tapping system known to all the prisoners.  Brief communication with other prisoners on occasional walks in the yard.  Rubashov is interrogated by an old comrade from the early days; then later by a young, cold, Stalin-raised officer.

Very interesting discussions about power, Communism, the endless tropes about "the ends justify the means" and the fiction of the supposedly well-intentioned smart folk looking out for the masses who don't know what they really want.  Like a big progressive state in so many ways, only somewhat cruder.  Same fawning press, however.  Ugh.

Rubashov discusses Crime and Punishment with the second interrogator; needless to say, Dosteovsky fell out of favor with the Communists (Raskelnikov was on the right track, but wavered).  Part of the discussion here reminded me much of Demons, which I happened to be reading concurrently.

Much worth reading but - maybe because I read those other works earlier - it didn't seem to have quite as much punch as the Solzhenitsyn works (such as this).