Second book in the series. Am enjoying this series and the world building here. We get a bit more background info on John, still not a lot on Caleb and very little on Gray. There is a lot of time spent in his book on the symbiotic relationship between Caleb and Gray and how they are coming to co-exist. We also see the relationship between John and Caleb deepening and John coming to also see Gray as more than an NHE to be eliminated.

A seed is planted re who at Spectr May or may not be trustworthy. Thus we get the start of a conspiracy boiling under the surface of the individual book plots.