A mysterious box. A house full of secrets. Five cats who refuse to be ordinary. At the grand mansion of Sans Soucis, life is never quiet for Kai & Co. — a fearless feline troop led by the self-proclaimed General Kai. When a delivery van drops off a cardboard box marked "DO NOT OPEN UNTIL OCTOBER," the household dismisses it as Halloween decorations. But the cats know better. What begins as curiosity quickly spirals into chaos: frogs storm the veranda, crabs invade from the garden, skeletons rattle in the corners, and shadows twist into something almost alive. From sneaking into Madam's dinner party to clashing with a rival gang of strays, Kai, Luna, Misty, Lucky, and Sunshine must defend their home against every "monster" the season throws their way. Part mystery, part comedy, and all heart, Kai & Co.: The Halloween Mystery blends mischief and friendship into a hilarious, spooky adventure. Perfect for young readers — and anyone who has ever suspected their cats of plotting behind their backs. This is Book 2 in the Kai & Co. series.