Slavomir Rawicz was a young Polish cavalry officer. On 19 November 1939 he was arrested by the Russians and after brutal interrogation he was sentenced to 25 years in the Gulags. After a 3-month journey to Siberia in the depths of winter he escaped with 6 companions, realising that to stay in the camp meant almost certain death. In June 1941 they crossed the trans-Siberian railway and headed so...