Well done bit of investigative science reporting involving, in this case, a mystery of sorts. The Author's style while seemingly matter of fact and sparing is quite engaging, unique, and refreshing. While this might be a tired tale in someone else's less capable hands, the Writer here puts pen to paper and presents something interesting, fascinating, and quite intriguing. A good amount of information, quoting, and commentary is presented for the reader to mull-over. A brief but decidedly worthwhile read. Four stars!