[From the back of the book: "The Hardy boys collaborating on a case with Sherlock Holmes? Well, almost. A new musical play based on the legendary detective is coming to Bayport. It's called The Giant Rat of Sumatra, and Joe has joined the cast. There's singing! There's dancing! and there's sabotage?
Someone's determined to bring down the house before the curtain goes up. Part of the set crashes to the stage. Death threats are painted on the walls. Stage props are transformed into sinister weapons. And if Frank and Joe don't catch the villain of the piece, the climax could be crushing!"
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