Having read Fatherland and been impressed with the depth of characters and research I avidly bought Engima, Harris' second book, anticipating the same level of detailed research, intensity and suspense. However, I was left feeling disappointed.
The book is clearly well researched and gets across the feelings of paranoia present at Bletchley Park in the Second World War. However, the characters are not as deep as in Fatherland. The Plot in the book seems to chug along at the same pace and never seems to have the intensity and suspense that Fatherland had. When the book gets to its peak I felt a little cheated that I had read so much for such a weak ending.
Overall, a clearly well researched book, but lacking in depth or suspense. If you have read Fatherland, do not expect a similar read.