Fictional dying world in the Narnia universe
Charn is a fictional city appearing in the 1955 book The Magician's Nephew, the sixth book published in C. S. Lewis's Chronicles of Narnia, written as a prequel to The Lion, the Witch, and the Wardrobe. Charn, and the world of which it is the capital city, are the birthplace of Jadis, also known as the White Witch, who later seizes control of Narnia.
When visited briefly by Digory and Polly, the protagonists of the novel, the city is totally deserted, lifeless, and crumbling under a dying sun in a dark blue sky. However, according to Jadis, the sun had been that way for eons, but the sky was likely light blue. Rivers have dried up, and neither weeds nor insects live. All life in the world of Charn had been destroyed by Jadis through an evil magic spell known as the Deplorable Word. In the novel, the city stands as an example of the dead end that can result if a civilization succumbs to evil.
During their visit, Digory accidentally wakes Jadis from suspended animation, and she is able to leave the world with them.