Hardy Boys: Sports Sabotage (Used Paperback) - Franklin W. Dixon

Bayport Elementary's annual Field Day is here, and all the kids are excited, including Frank and Joe. But 2 days before the event, someone has a field day with the equipment - and makes a total mess of everything! And if no one confesses, Field Day will be canceled! 
It's up to Frank and Joe to piece the clues together before the fun is ruined for everyone.

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