I enjoy a good adventure story, if it's well told. I enjoyed this one!
I've also enjoyed every other book Du Brul has written. I simply feel that this author has a keen grasp of this type of story, and the ability to give the listener a good mix of action along with a chaser of historical backgground to tie the story lines together. His stories are "plausible" (if you think about it) and center around some outlandish plots.