The Secret of the Caves by Franklin W. Dixon

https://thebookvoice.com/podcasts/2/audible/11475 to listen full audiobooks. Title: The Secret of the Caves Series: The Hardy Boys Series, Book 7 Author: Franklin W. Dixon Narrator: Caleb Summers Format: mp3 Length: 4 hrs and 16 mins Release date: 03-05-25 Ratings: Not rated yet Genres: Growing Up & Facts of Life Publisher's Summary: When a brilliant young professor mysteriously disappears, Frank and Joe Hardy find themselves thrown into one of their most thrilling cases yet. From the lively halls of Kenworthy College to the eerie depths of the Honeycomb Caves, the brothers follow a trail of cryptic clues that begins with a strange message scrawled on an exam paper. But nothing could prepare them for the dangers that lie ahead. As they explore the rugged caverns along the windswept coastline, the Hardy boys stumble upon a hidden searchlight whose powerful beam reveals a startling discovery.