THINK YOU'RE SMARTER THAN ENCYCLOPEDIA BROWN? THINK AGAIN!
THERE ARE TEN MYSTERIES INSIDE -- CAN YOU SOLVE THEM ALL?
• A ghost who whistles…
• Eight stuffed penguins…
• An underwater car…
• A famous explorer's fortune…
• And an Idaville boy who's literally lost his marbles!
The solutions to all the mysteries are in the back (just in case you don't crack the case!).
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