I've always loved this book, despite its previous titles (the original of which graces my cover) and the rather unpleasant rhyme that the murders are based on. I really cannot blame the murderer for being so terribly pleased with him/herself. The entire thing is ingenious and I can only wish that I was clever enough to devise such a plan myself (which is why I shall remain a reader of mysteries and not write them myself). Knowing exactly how things play out, I was able to spot a few very early clues that I hadn't noticed before, notably the one given right at the beginning. In chapter one there is a clue that makes everything perfectly clear, if one has the wit to see it. I've only noticed on this reread, so I must presume that I am not nearly so clever as I like to think.