Skimmed. Some chapters very short, others regular length. Choppy read -- but in a good way -- kept me on edge. What I found frustrating was the fiction aspect -- how much of what I was reading actually happened? Because of other reading demands at the time, I chose not to finish. However, it is definitely based on the facts of Frost's life. Would be interesting to read something else about his visit to Russia in the 1960's.