Honestly I was starting to find these books repetitive. Scott Baron has done a decent job and introducing new aliens, and challenges for Charlie to overcome but the who the what and the why were almost always answered seemingly before the books begins. This book finally bring backs some mystery. We meet new characters while others stay hidden behind a mask of secrecy and even even when their identity is revealed it poses more questions. If you enjoyed the first book of the series and missed the sense of discovering new knowledge this book is a nice return to that. Come join Charlie as he brings the fight to…well we don’t know who.