A thrilling finale to an arch mystery-adventure series pits Bert the cat against the infamous YummCo Labs. Bert was a bedraggled stray before nine-year-old Mellie Gore adopted him--and has already escaped from YummCo once, vowing to find a way back to free the other captives. Now the Yumms have nabbed Bert again, and he wants revenge. Mellie's plans to rescue her pet are interrupted when the entire town, including her own parents, begin turning into YummCo-product-consuming zombies. And why is Mellie herself suddenly starved for food to fuel her buzzing brain? What exactly is happening at the YummCo Labs? With trademark wit and a taste for the playfully macabre, award-winning creators Kara LaReau and Ryan Andrews close out the ZomBert Chronicles with a funny and suspenseful flourish.