The Baseball Card Conspiracy
ISBN: 9780671730
Description
When the Hardys' friend Biff falls victim to a counterfeit baseball-card scheme, Frank and Joe go undercover at a baseball memorabilia convention in New York City.




Reviewed on 3rd January 2026
I a run-of-the-mill 1992 adventure, the Hardys repeatedly visit New York after one of their friends buys a counterfeit baseball card, and the whole world acts as if this is the biggest possible crime that anyone could ever commit.
There's possibly the most peril of the entire series - every chapter seems to see the brothers knocked out, locked up, dropped on, or otherwise endangered leading to massive cliffhanger fatigue.
Educational, perhaps, but not the most engaging.