A quick addendum: There is a fourth book in the Mad Scientists' Club series, which was published after the author Bertrand Brimley's death by his son Sheridan. It is titled The Big Chunk of Ice and involves a trip to Europe, a blimp, and a diamond, among other things! The Mad Scientists' Club - The Complete Edition was published in 2010, which contains all four books (both full length novels and all short stories).