Book excerpt: In this new collection of his nonfiction, well-known critic and novelist Darrell Schweitzer writes about The Lord of the Rings, Neil Gaiman, E. R. Eddison, the Three Stooges, H. P. Lovecraft, Lord Dunsany, Arthur C. Clarke, Robert Nathan, alternate histories, the culture of bookselling, and many others. "The finest kind of criticism--knowledgeable, witty, and highly accessible"--Robert Reginald