I really liked this trilogy. The 1st book is adrenaline, the 2nd is cerebral and the 3rd is ramifications. All are enjoyable and I really appreciate the nuances that Ness adds in. The stakes ratchet up, the tension increases, the death toll climbs (even though the saddest death is in book1 -I am still upset by it-) and the tone gets darker as the series continues. It is a lot like growing up.