Since these are so short, I'll treat them as one book. we really enjoyed these! They seemed to read like one longer book instead of 5 very short ones, so I recommend bringing home 3 at a time at least. The world Tony DiTerlizzi and Holly Black create is very real. It is original working of familiar fairy material. It also really sounds like it's coming from the perspective of a 9 year old boy; childishly simple at times. The treatment of divorce is sensitive while still showing the deep pain and even havoc it brings to children's lives. All the old friends from fantastical literature are here: elves, fairies, goblins, brownies, hobgoblins, dragons, sprites, and ogres, but with so much originality and individual character.