I’m a little late getting to this one, as the omnibus version came out in June, but I finally got to it. (My TBR pile is pretty tall, and since I’m usually working on reading about six books at a time, not to mention writing, it can sometimes take a bit.) I haven’t read any of the rest of the Perseid Collapse series, but that doesn’t take away from Ross Elder’s contribution. There is little extra background needed, and what is needed is provided. The book opens after the Perseid Event (the nature of which is never clear in the Scavenger Trilogy, though there is some speculation), with society already pretty well in collapse. We meet the protagonist, Zack Morris, as he’s investigating an abandoned house.