Looks like there's a mystery to solve...Ruh-roh, better make that TEN mysteries to solve. Now it's up to Scooby-Doo - and you - to sniff out the culprits! Inside this book are ten tough cases just waiting to be cracked -- and Scooby-Doo is going to need a little help from YOU now. Can you collect the clues and solve each case before Scooby does?