Given the time and delays involved in the writing of THE AMBER SPYGLASS, I was initially afraid that it wouldn't live up to the huge expectations raised by the first two books. The first hundred pages or so, too, seemed slower and less tightly written than the previous volumes. Fortunately, this turns out to be only a building of tension before the near-apocalyptic events the book describes, and Pullman carries off his conclusion in brilliant theological, emotional, and literary fashion. Pullman shows his normal invention throughout The two-layered ending of the book is both joyous and painful, and is a masterpiece of the art of writing for both children and adults; nothing is explicitly sexual, but the finale is deeply erotic nonetheless. Much mention has been made of the book being a kind of sequel to PARADISE LOST; undoubtedly true, but remember that it also makes great use of the works of that other prophet, William Blake (whose MILTON, of course, is a sequel to PARADISE LOST in itself.) The joy of the body and the mind, unchained by religion, is one of the main themes of the book. The book is, of course, deeply religious, even mystical, in its imagery, language, and feeling, but its overall message is one of a powerful imaginative atheism. Some readers might be disturbed by this message. After all, this is a book that says, quite clearly, that "Christianity is a very powerful and convincing mistake." Myself, I'm all for it, and I think that Christian parents should allow their children to be challenged by the message of the book, but, if you feel strongly about such things, be warned. The one element of the book I would question is the subplot involving the mulefa (diamond-wheeled creatures in an alternate ecology) which seems disconcertingly science-fictional, and which lack the fantastical resonance of the other creatures in the trilogy. They seem included largely to make a point, not by virtue of their own interest, and those sections, while necessary to the overall plot, slow the book down. Still, it's a minor flaw in what is probably the greatest sequence of novels, for adults *or* children, published in the last decade or two.