#121 The Mystery in the Old Mine
A search for truth leads Frank and Joe into a tunnel of toxic terrors!
The Hardys head underground and find themselves under fire and under the gun!
Ridge City, Pennsylvania, a rough and rugged coal mining town, is in danger of dying. Underground fires rage out of control, and Liz Trimmer, the one woman working to protect the city, has suddenly disappeared. Now her brother, a friend of the Hardy boys, has received a sinister note saying that Liz has been kidnapped!
Frank and Joe discover that Liz's powerful stand has made some powerful enemies. From city hall to the local nuclear power plant, the boys dig into a world of dirty politics, dirty deals, and dirty tricks. But they're determined to unearth the dirty secret endangering Liz's life -- a secret that could end burying them!
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