Hardy boys mystery stories

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Hardy Boys #49: Bombay boomerang

The Hardy boys dial a wrong number, get the Pentagon, and suddenly find themselves in a dangerous adventure involving national security.

The Secret of the old mill

The hooded hawk mystery

Frank and Joe received a peregrine falcon valued at.

Shield of fear

The mystery at Devil's Paw

Frank and Joe suspect that there is something sinister going on at the site of an Alaskan waterfall when they and their friends are harassed and warned to stay away.

The secret agent on flight 101

Frank and Joe, the Hardy boys, solve a mystery involving a magician, American secret agents, an international spy ring, and a Scottish castle.

A figure in hiding

Frank and Joe investigate a walled estate guarded by savage dogs, where a businessman is hiding in fear of his life.

While the clock ticked

The mark on the door

The search for a stolen boat leads the Hardy brothers to Mexico where they become involved with a band of Indians and a strange smuggling operation.

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