The premise of the story is intriguing and the early chapters draw the reader into a fascinating, but sordid history of the Hitler family with a literary, but readable style which, together with the innate fascination of the subject, turn this into something of a page-turner quite early on. However, at some, hard-to-pinpoint, stage the tale loses its way, as if the author lost his train of thought.
At two points the fanciful fiction of how Adolf Hitler became evil digresses to the point of irrelevance; once when the narrator rambles on about his role in Russia and for a second time where over 100 pages are devoted to Adolf's father's bee-keeping activities which draw the reader to create parallels with concentration camps but is then told that this is far to simple and explanation - why then make such a point of it?
These failing aside, Norman Mailer succeeds in weaving a picture of a child inherently evil, an evil nurtured by devils and his father's behaviour, with acts of coprophelia, sexual deviance, carelessness and domination to give the reader what they expect. What the reader does not expect, though, is such a weak ending whereby the story is wrapped up in a hurry, just at the point where Hitler is about to exhibit the results of his upbringing; a very unsatisfying conclusion that seemed to result from the author losing interest in the tale.
Whilst The Castle in the Forest is a very readable book and contains some interesting ideas, ultimately it is a real disappointment. Those interested in Adolf Hitler will certainly find something of interest here and anyone who enjoys thought-provoking stories will find some interesting ideas on the nature of evil, but those who wish to read a well-rounded tale will need to look elsewhere.