
Written by Franklin W. Dixon
Book #10 in the The Hardy Boys series
Two detectives race to save a secret invention and each other from a dangerous mystery.
Frank and Joe are young detectives on a mission to secure a scientist's top-secret invention from thieves. But when Joe is kidnapped, Frank must unravel a deeper mystery to save his brother and prevent disaster. Can Frank outsmart the criminals and rescue Joe before it's too late? The stakes are high, and time is running out in this thrilling chase.
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 of on a chase that could end disastrously for him and his pals.
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