The FrightVision series continues with Book 6: The Attack of the Yellow Smart Sack. Lewis Izinger desperately wants a new backpack, but not just any backpack... he wants the all new Yellow Smart Sack It's the hottest fad at Cantaloupe Valley Middle School, worn by the social elite. The Yellow Smart Sack is light as air, no matter how much it's carrying It keeps track of all its contents and finds...