In the "My Friend Marsupilami" episode Marsupilami Gaurdians, the poison stone (also called the "skystone") is a blue meteorite that struck Polombia when the Incoaztecs were only beginning to exist as a civilization under the guidance of the first known marsupilami. The species was seen as the most powerful force on earth, until the heavens proved the Incoaztecs wrong by dropping the poison stone in the middle of the ancient jungles, and along with distroying much of the trees, it radiated the power to drain the marsupilami of its unique abillities, and almost took its lifeforce as well. Luckily, the Incoaztec chief saw the situation and, while the tribe nursed the creature back to health (guided by visions, no doubt), he and his warriors had sealed the poison stone and its distruction in