Croak
 

LENGTH:
Takes an average reader a little over a half hour to get to the "solve-it" page.

WHAT'S IT ABOUT?
Frog extinctions! In your home town!

IS IT SUSPENSEFUL?
Oh yeah.

THEMES:
When it comes to ecology and life science curricula, "Croak" has got it all - ecosystems, predation, pollution, exotic invaders, and mysteriously dead pets. And it's presented in an inquiry-based format that tests your problem solving skills and deductive reasoning!

IS IT WORTH DOING?
This is far and away our most popular mystery. Save the Frogs!

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FOR TEACHERS ONLY
Teachers: only you know the answer