My goodness, this is certainly embarrassing! I'm the first one to review this book, and I'm a spry young lad of 40. Isn't this supposed to be for fanboys and fangirls? (Whatever those are...)
It should be obvious that I'm getting my geek on. With Book 7 coming out in less than three months, and having reread all the books, I found myself craving something "Potter". I don't care much for discussion forums because an awful lot of ridiculous theories get mixed in with intelligent discussion, so I thought this would be fun.
The author, David Langford, is a 27-time Hugo Award winner. Those are impressive credentials. He's a very bright, funny guy, and knows the Potterverse well enough to be a more than able guide. Some theories I'd seen, others I'd thought of, but he did manage, more than once, to slip something in that took me by surprise. For example, when discussing Dumbledore's trust of Snape, he opined that perhaps Dumbledore does NOT trust Snape in the way we think he does. He discusses Rowling's ability to fool us in depth, like a magician waving a rabbit in front of our faces but convincing us that we can't see it. She's a master at that. What other kind of trust might Dumbledore have? He might trust that Severus Snape will do exactly as he expects him to, play the part Dumbledore wants for him, and go back to Voldemort's side. So, when he says that he trusts Severus completely, he's saying that he trusts him to be untrustworthy.
I'm not sure that I believe that, but it was a new thought, a very valid one, and made me sit up and pay more attention.
If you're tired of discussion forums, this is a terrific place to turn.