chunk: While running away from Mrs Macready after accidentally breaking a window, the four siblings retreat to the wardrobe and enter Narnia. They discover Mr. Tumnus has been taken by the Witch, and meet Mr. and Mrs. Beaver, who tell them about Aslan. According to the beavers, Aslan intends to take control of Narnia from the Witch. The four must help Aslan; it has been prophesied that if two sons of Adam and two daughters of Eve sit in the four thrones, the White Witch's reign will end.
  Edmund sneaks off to visit the Witch. When he arrives at her castle, she is angry that he did not deliver his siblings. The Witch sends wolves to hunt down the children and the beavers, who barely escape. Edmund is chained in the Witch's dungeon, where he meets Tumnus. The Witch demands that Edmund reveal where his siblings are. After Tumnus claims that Edmund does not know anything, The Witch tells Mr. Tumnus that Edmund betrayed him, then turns Tumnus to stone.