I'm responding here to Disputations comment on my previous posting:
What makes Aslan's death an allegory of Christ's death? One sentence, pulled from nowhere and headed nowhere.

There are a large number of ways in which Lewis's account of Aslan's death has consciously been designed by him to allegorically match some of the details of Christ's [...]

The Disputations blog has an interesting take (1 2) on theology in the book The Lion, the Witch and the Wardrobe, complaining that a part of this is "very bad art, and worse theology" and "cover-your-eyes awful theology" The central complaint is made against these lines:
The Witch knew the Deep Magic. But if she could [...]