1 of 1 people found the following review helpful
5.0 out of 5 stars
Intricate and insightful, 9 Jun 2014
This look into the numerous messages between members of this secretive sect is quite interesting, showing codes on top of codes while also providing some unexpected humour. Wylie's code breaking skills are to be commended and leaving some of the codes to readers to break down themselves was a nice touch, although those who aren't so confident in that field may be intimidated; still, good value for what you get!