The Three Investigators do it again, solving their strangest mystery thus far. This case involves a 3000-year-old mummy that mysteriously whispers in some archaic tongue to one professor alone. The boys overcome a number of hurdles set in their way, some involving great personal danger to themselves, to solve this perplexing mystery and, at the same time, return an unusual Abyssinian cat to his loving owner. As the series continues, we learn more and more about the boys themselves and their secret headquarters, see them employing more gadgets in their work, and see the logical gymnastics Jupiter Jones continually performs to find resolutions to case after case. There is more deductive reasoning exhibited in this case than in the trio's previous two adventures, and that only serves to further draw the reader into the world of Rocky Beach, California. As I continue to re-read these classic stories from my youth, my appreciation for the writing of Robert Arthur grows more and more. I was indeed pleased to see that my suspicions in this case proved correct in the end; even had I been wrong, I would not have been embarrassed because Arthur's tight plot works on two levels--that of young readers, who can certainly follow the case with understanding and eager anticipation for each upcoming chapter, as well as that of adults. This is a great mystery story in all regards.