This is a relatively late and inferior entry in the Three Investigators series. The series was created by Robert Arthur, a woefully neglected author who did a great deal of work with Alfred Hitchcock; Arthur wrote the first nine and the eleventh book in the series. Unfortunately M.V. Carey was no Robert Arthur!I recently read the book to my son. We've read many of the books in the series together. In this one, there were several ways in which the book simply didn't work. Oh, Carey included the usual iconic elements of the series; Jupiter Jones' family, and the hidden Headquarters (a trailer buried under a pile of junk), and Pete, and Bob. But there are several false notes.One that was particularly annoying was the use of Jupiter's name. Arthur usually referred to him as "Jupiter" or "Jupiter Jones". Once in a while his fellow Investigators, Pete or Bob, would refer to him as "Jupe". But in this book, he is almost always called "Jupe" - not just by other people, but by the narrator. I'm not that picky, but seeing "Jupe" repeated over and over in paragraph after paragraph just got weird! It started to become a meaningless sound - you know how some words get when you say them over and over? I ended up auto-correcting it to "Jupiter" when I read it aloud, except when it was said by Pete or Bob.The mystery itself was just...okay. Nothing particularly clever or memorable about it. If anything, the resolution was rather anticlimactic. I won't bother to give it away, though.But another thing that was quite irritating was a dramatic change in a long-standing supporting character, Police Chief Reynolds. In the early books in the series he was supportive and friendly to the Three Investigators, even going so far as to give them official cards identifying them as Junior Deputies or something like that. In Flaming Footprints, he has been completely changed. He's sneering, abusive, hostile, and sarcastic. The change was so extreme that my son remarked on it. Personally, I found the recasting of Chief Reynolds as a stereotypical negative adult authority figure so irksome that I couldn't resist editorializing: "'What do you want now, Jones?' snarled Chief Reynolds, while busily stomping on a cute kitten and simultaneously farting on a helpless old lady."My son is more generous and/or uncritical than I am. He gave the book 4.5 stars. I feel I'm being generous in giving it three.Oh, as always I should note that there are probably two different versions of the text extant. Older versions feature the character of Alfred Hitchcock. For legal reasons newer editions have been rewritten to replace Hitchcock with a lame-ass ersatz version. If you decide to pick this one up, try to go for an older edition. But if you're new to the series, I strongly recommend starting with the original nine books by Robert A. Arthur.