sentences:  Remaining a professional soldier, Grant gradually but inevitably compromises himself under the new regime, via three tests of his humanity, after accepting a posting connected to building a road from India to the Russian frontier.First he is confronted with an old friend in a Jewish working party; then he must try and execute a fellow officer for Communist treason; before finally having to denounce his former superior officer.Grant's seeking of emotional solace with a prostitute is interrupted by a Cossack attack, during which he tries to get himself killed.