A review by kleedc73
The Doomsday Key by James Rollins

4.0

This is a great installment in the Sigma Force series featuring Painter Crowe and Gray Pierce. The plot was well structured, quick-moving and full of action. It advanced some of the continuing plotlines concerning the personal lives of the main characters, including Gray and Monk Kokkalis, as well as the plot concerning Sigma's growing adversity to the shadowy organization known as "the Guild". At the same time, the plot completely stood on its own so that this book was not just a bookmark in a larger story.