The Secret of the Caves: The Hardy Boys: Book #7

A call for help. A vanishing professor. And a rugged coastline hiding a sinister secret... When Frank and Joe Hardy set out to help a friend in trouble, they never expect to be swept into a thrilling hunt for a missing man-and a string of mysterious events tied to the desolate Honeycomb Caves. Strange figures lurk near the cliffs, unmarked cars speed through the night, and a hidden wireless tower pulses with secrets no one wants uncovered. Guided by sharp instincts and relentless curiosity,...