Learning from Fan Fiction: Speaking for God

In The Lion, the Witch, and the Wardrobe, C.S. Lewis as narrator states the following:

As soon as [Peter, Susan, and Lucy] had breakfasted, they all went out, and there they saw Aslan and Edmund walking together in the dewy grass, apart from the rest of the court. There is no need to tell you (and no one ever heard) what Aslan was saying but it was a conversation which Edmund never forgot. As the others drew nearer, Aslan turned to meet them bringing Edmund with him. "Here is your brother," he said, "--there is no need to talk to him about what is past."

So if one is writing Narnian fan-fiction about Edmund, an awesome character, from his point of view, does one include what Aslan said?

If one is trying to retain Lewis's vision--

No.

The problem is not merely that putting words into Aslan's mouth might contradict Anglican Lewis's beliefs (what kind of God is God?). It goes deeper than that.

C.S. Lewis consistently refuses to make a theological appraisal of Aslan, which may be why the books are so effective as story. Aslan, the character, is majestic and playful, kindly and quiet as well as somewhat aloof with a dry sense of humor. He is capable of righteous anger and deep sadness. He is gentle.

He is also, as characters in several books state emphatically, not a "tamed lion." He rarely explains himself, and Narnian citizens spend blessedly little time trying to explain him (the citizen who tries to do this the most is the villainous conman, Shift).

Aslan considers freedom better than imprisonment, as the children trapped in the schoolroom can attest. And he himself never philosophizes or dictates rules--except perhaps to Jill Pole in The Silver Chair but those are hints to help on the current adventure, not Ways to Be Good To Get Into Heaven.

I've read occasional Christian Applications of the Narnia series to Real Life; some of them have even been okay. But all of them kind of miss the point. Lewis honestly wasn't trying to speak for God when he wrote the Narnia series. He would have found such an attempt foolish--and possibly blasphemous.

All we can guess from Edmund's conversation with Aslan is the result:

Edmund was a graver and quieter man than Peter, and great in council and judgement. He was called King Edmund the Just.