Jadis. As cold as ice and true to the word powerful, she is the first of the Northern witches of Narnia. She is a descendant of the World called Charn, a descendant from a line of kings and queens in Charn. Due to her inability to yield to her sister's authority, she speaks the forbidden magical Words and due to her own great magical power, destroys Charn completely. She undertakes the voyage through the Woods between the Worlds--an endless forest that has pools of water as portals to other Worlds--and then comes to settle in the Kingdom of Narnia.
Jadis' magical power was extremely powerful in Charn but outside of the World, it is reduced greatly. She is not as powerful when it comes to magic in other Worlds as when she was in Charn. She has superhuman strength, capable of lifting great weights and bending iron with her bare hands. Unlike her magic, her strength does not change when she goes to another World. Jadis is a powerful witch who is capable of locking entire Kingdoms and Worlds in eternal winter as she did to Narnia. Her deadliest weapon is her wand which is capable of turning anything it touches into stone and she uses these statues are used to decorate her palace. She is also an excellent swords woman. The petrified victims can only be turned back to normal by Aslan's roar or growl. She is also called the White Witch and calls herself the Queen of Narnia, the Lady of the Lone Islands.
In Narnia, Jadis rules the North as the Queen of Narnia ruthlessly destroying anyone who stands in her way or opposes her rule as Queen despite Aslan's rightful dominion over the Kingdom. To show her meaning more clearly to the Narnians, she locks the land in eternal winter and brings some of the Kingdom's people to join her cause. She secretly fears the legend that talks about two sons of Adam and two daughters of Eve who will one day come to Narnia and end her rule. When the day comes, and the children finally come, she tricks one of them whom she imprisons and tries to find the others whom she wants to destroy. But unfortunately for her, they are a lot more intelligent and powerful than she thought and she ends up dying in the jaws of the lion Aslan. She is later called up from the world of the dead, where she appears behind an Ice Prison but due to certain circumstances, she is unable to return to the living World.