This book was purchased at the request of my son who is 12. The first volume had been offered to him and he loved it. Finally, the second was read even faster than the first. Result 4 volumes were read at the speed of lightning; I've never seen my son so much addicted to reading ... when he had 1 minute to him where that is. I even think I'll read them to make me an opinion. I recommend it of course.
