Having picked up a “mod” paperback reprint of this novel to take on vacation, I was very nearly guilty of judging a book by its rather dreadful cover. As I started reading, however, I noticed things were less sixties mod and the writing much better than I expected. So I looked at the copyright page and found it had actually been written in 1939, which explained a few things, and I ended up enjoying the wit and characterizations very much. The mystery was quirky and not obvious, so that was good too.