I am currently reading this book for the third time. But this time I am reading it out loud with character voices for my 12 year old daughter. We are 3/4 through the book and she finds it truly awesome! Paul Kidd has written a really good Gamma World story here. He actually uses creatures and mutations from the 4e version of the game. He has also authored a few Greyhawk novels as well and I would suggest those as well.