The Mysterious Matter of I. M. Fine

The story revolves around a bizarre phenomenon triggered by the Chillers series, where children begin to exhibit odd behavior after indulging in the latest installment. What begins with a harmless Jelly Worm craze escalates into a nationwide crisis, marked by severe headaches and a shocking serpent-related incident that sends several kids, including Franny's sister, to the hospital. As the situation spirals out of control, the urgency to uncover the truth behind the books intensifies.