Some readers believe that the White Witch and the Lady of The Green Kirtle are the same person. So before you disregard it, keep in mind that it is a possibility. Their are arguments for both sides. First off, two witches are mentioned by name in the Narnian books, the White Witch (Jadis, empress of Charn, or the "White Lady") and the Lady of the Green Kirtle (or "the Green Lady"). Long after Lewis's death, character sketches appeared in later editions of the books that seem to indicate that these two witches are the same, but these are not according to the author C.S. Lewis.

Proof that they...