Magic set to conduct experiments like a real witch in a particularly spooky cauldron! Invent spells and create many potions: glow in the dark, sparkle... and much more! The star of this set is, like others from the Crazy Science series, Cillo, the friendliest bacterium in the world, who guides children step by step through crazy laboratories. All experiments are described in a playful manner step by step to make it easier for children to follow along.