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Tunnel of Secrets
Sinking into danger When a sinkhole opens up and swallows one of Bayport’s historic statues, Frank and Joe suspect something — or someone — shady is at play.
About Tunnel of Secrets
Sinking into danger When a sinkhole opens up and swallows one of Bayport’s historic statues, Frank and Joe suspect something — or someone — shady is at play. They jump at the chance to investigate: Joe as a member of an urban exploration club and Frank as a photographer for the school paper. But in the thick of their search, the boys stumble upon an entire underground city that’s been abandoned for years. Now the city is home to a cultish band of criminals who plan to take over Bayport. Frank and Joe are determined to catch the crooks . . . but after being barreled down by a boulder and nearly squashed by a runaway train, they have to wonder: Are they in over their heads?
Where to listen & where it's available
Tunnel of Secrets is available as an audiobook on Apple Books. We haven't confirmed it on Spotify yet — but you can still search there below.
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More by Franklin W. Dixon
Trouble Island
The Vanishing Game
The Tower Treasure: A Hardy Boys Adventure
The Shore Road Mystery (The Hardy Boys Series)
The Secret of the Old Mill: A Hardy Boys Adventure (The Hardy Boys Series)
The Shore Road Mystery: A Hardy Boys Adventure (The Hardy Boys Series)
The Smuggler's Legacy
The Secret of the Caves: The Hardy Boys, Book 7 (Unabridged)
Tunnel of Secrets — frequently asked
- Is Tunnel of Secrets on Spotify?
- We haven't confirmed Tunnel of Secrets on Spotify's audiobook catalog yet. Spotify audiobooks are included with Premium (up to a monthly listening limit) in supported markets.
- Is Tunnel of Secrets on Apple Books?
- Yes — Tunnel of Secrets is available as an audiobook on Apple Books.
- Who wrote Tunnel of Secrets?
- Tunnel of Secrets is by Franklin W. Dixon.
- Where can I buy the Tunnel of Secrets audiobook?
- Audible and Amazon both carry audiobooks; use the retailer links on this page to go straight to Tunnel of Secrets. For print copies, compare Bookshop.org, Barnes & Noble, and Books-A-Million.
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