Strange paintings have come to light in ancient Mexican pyramids and temples. Is the mysterious painted woman the actual Quetzal Queen? Did she really reign for almost 800 years? What has the sudden disappearance of Fifi Glusac (the famous contortionist and harmonica player) got to do with it? Cairo Jim, that well-known archaeologist and little-known poet, with his friends Doris the Macaw and Brenda the Wonder Camel, finds himself faced with another flabbergasting mystery from times past...