11 parts Ongoing William is a teenager who lives on the outskirts of the forest with his elderly stepmother, Matilda. Everything seems to be like any other day, until after a small adventure in the woods, he meets old Cornelius. A strange man who lives alone in a hut beneath the trees, has a special bond with animals, and knows how to tell beautiful stories. This encounter will lead to a good friendship, as well as a huge change in William's life.
One cold autumn day, Cornelius tells the story of Idelmir, a distant world full of endless beauty and creatures of all kinds. However, the Shadow of the powerful and cunning Witch Ethel has covered Idelmir and the creatures that live there. An ancient prophecy speaks of Namhaid, the enemy of the Shadow, and the time when he will free Idelmir from the tyranny of the Witch and her dark army. William is fascinated by this story but is shocked when he learns that Namhaid is none other than himself.