A collection of books so dangerous they are locked up tight. A friend has vanished inside the pages of one of them. It's up to them to find the key that will set her free.A PRICELESS DIAMOND...STOLEN!When Cleo and Evan go undercover to help a rookie detective interview a mansion full of suspects, nothing is as it seems. They must catch the crook -- and find the right key -- or they could be trapped inside this mystery forever...

    Well, except for the fact that the teacher is out sick and Smashie’s class is stuck with Mr. Carper, the worst substitute in the world. And except for the mysterious business with the glue. And except for the fact that Smashie is wrestling with a terrible problem, which only partly stems from her extreme aversion to hamster feet. As the peaceable and productive days of Room 11 turn into paranoia-fueled chaos, as natural suspects produce natural alibis and motives remain unmotivated, Smashie and her best friend, Dontel, are forced to the limits of their parlor-room detecting to set things right.

    Here on Mouse Island, my books are all bestsellers! What's that? You've never read one? Well, my books are full of fun. They are whisker-licking good stories, and that's a promise!It all started when my sister, Thea, discovered a mysterious map. It showed a secret treasure on a faraway island. And before I could let out a squeak of protest, Thea dragged me into her treasure hunt! In no time at all, we'd set sail for the island. It was an adventure I'd never forget....

    But when Bean plays a joke on her sister, Nancy, and has to hide quickly, Ivy comes to the rescue, proving that sometimes the best of friends are people never meant to like each other. Vibrant characters and lots of humor make this a charming and addictive introduction to Ivy and Bean.