Bernadette Braggadoccio stirs things up when her probing investigative reporting for the school's TV station reveals some scandalous stuff. But don't believe everything you hear. Is that new art teacher really a crazy lady with zillions of cats, or could there be more to this story? For their last year at Aesop, the fifth graders are hoping for the coolest class pet—a unicorn, a pink-headed duck, or at least a giant squid. Imagine their disappointment when they get guinea pigs. But these guinea pigs have some very unusual traits.