Jeff Sexton
And yet Rollins manages to make this story completely his own, with only fans of the other three authors being able to see the connections probably at all. The follow up from The Seventh Plague in the opening scene with Sigma characters is great, and really drives home the very humanity that makes this series so truly compelling. But then the action picks up dramatically, and because of the nature of the threat... never really dies down. Once again the team is split with various people going various places, so people who don't like following multiple trains on a given story may not like that bit - though at least here, we basically follow the two halves of the Sigma team + the bad guys (a bit). One interesting feature here is that Rollins actually bakes the life span of the featured creature into the narrative here, having one chapter devoted to each stage of its development - from that stage's perspective. And yes, there are some utterly horrific scenes here as well, as virtually anything based on Unit 731 must include.
Overall an excellent tale and strong followup to The Seventh Plague, and sets in motion events which are sure to pay off down the line as well. Very much recommended.