Rollins has a style and structure similar to Dan Brown, but at times too heavily fortified with the science and history which can take the reader out of the narrative somewhat (something that Michael Crichton was often prone to). What really separates him from these and other writers of historical thrillers is the paramilitary aspect he brings in with Sigma. With the Sigma team, there’s an action thriller element, and the story keeps moving and the reader stays glued to the pages.
Another very important distinction between Rollins and other thrillers I’ve read is his distinctive characters. He’s got a lot of characters ultimately working toward the same goal, but each is an individual. The reader cannot get confused between these personalities they are so well established within the first 100 pages that you will know later without a tag or a prompt who is doing or saying what.
This is my first exposure to Rollins, and I am thoroughly impressed. I’ll have to read his other work now!