



Shelf and handling wear to cover and binding, with general signs of previous use. *** Hardcover Format, 1931. *** Text is clear of markings. Binding is secure. Secure packaging for safe delivery.
Frank and Joe race against time to retrieve a scientist's top-secret invention before thieves get their hands on it. But the young detectives soon discover that they are involved in a mystery far greater in scope than just safeguarding the invention. When Joe is kidnapped, this incident starts Frank...