It was a super insight into Sullivan and co.'s belief in the existance of Santa Claus. The book managed to combine magic and facts in a perfect way. At times the book got very factual when describing where Santa was supposed to have moved from, but apart from this which I found slightly tedious the book was excellent. I hear the book is going to be made into a film to be shown on CBS at christmas time, what Hollywood will do with it I'm not sure. Interesting magical stuff, and a super read just days before christmas. Yes Virginia there is a Santa Claus..and now we have proof. Plans for a follow up?