I recommend this not so much because of the writing quality (which is so-so) but because this book was the Christian fiction bestseller of the 1980s. It sold more than 1.8 million copies in trade paperback, 90% of which were sold through Christian bookstores (and industry figures show only 10% of Christians ever walk into a Christian bookstore.) Why? Because people are desperate for a book to read after they've finished C.S. Lewis! If you want to write SF/fantasy from a Christian perspective, you need to pay attention to this book!

Other Comments:

I have some problems with this work, specifically in the way angels are portrayed. They're portrayed as essentially human, only with super powers. They quarrel, they make mistakes... in short, they don't measure up to the glorious agents of God we find in scripture. Still, there is one strength in this book which I haven't yet discovered in any other. While reading it, I would be reminded of spiritual battles similar to those portrayed in the book, and I would stop reading to pray about them. There are many books which have made me feel guilty about not praying more. This book made me pray. – Greg Slade