Second-grader Goofball Malone is known to be good with jokes, but he finally gets his chance to be a detective when a dalmatian dog, Professor Pup, runs off from his owner.
En route to join their mother in the desert, thirteen-year-old Jamie and her older brother pick up a hitchhiker with a bag of money and soon find themselves helping to place a $12,000 bet in Las Vegas.
Relates nine mysterious events of the 19th and 20th centuries that have never been adequately explained, such as the story of the woman who could see through walls and the man who disappeared into thin air.
When thirteen-year-old Carrie uses a legal technicality to seize control of the school board and makes her best friend Jamie principal of their junior high school, things rapidly get out of control.
Horace and Mildred Flopbottom hire the young professionals of the Treasure Hounds organization to find out where Aunt Henrietta stashed her fortune before she died. Also includes two descriptions of actual treasures which have never been found.