Behold, in order, the three most disappointing words in the English language: “To be continued.” It’s rather different from “continued to be,” don’t you think? In any case, we had better pray (if you’ll pardon the irony) that 71-year-old Philip Pullman continues to be long enough to complete the remaining two volumes of The Book of Dust, the long-awaited companion trilogy to His Dark Materials, Pullman’s beloved epic consisting of The Golden Compass (1995), The Subtle Knife (1997), and The Amber Spyglass (2000). His Dark Materials has spawned, to date, at least 18 academic books, a major theatrical production, a radio drama, a visually breathtaking but otherwise disappointing Hollywood film, and most recently, a BBC TV series that has been in development for more than a year.