I'm not sure Edmund should have been told what Aslan had done for him. Edmund had to understand the sacrifice that Aslan, a metaphor for Christ, made for himself. He could not be compelled or guilted into truly knowing what Aslan did and who Aslan...
"Oh how can they?" said Lucy, tears streaming down her cheeks. "The brutes, the brutes!" for now that the first shock was over the shorn face of Aslan looked to her braver, and more beautiful, and more patient than ever. Ch 14
I'm sorry, I do not understand your question as written. Are you asking how the Professor justified, explained, or gave advice about Peter and Susan's dilemma? Do you have a chapter number for your question?
The Lion, the Witch and the Wardrobe essays are academic essays for citation. These papers were written primarily by students and provide critical analysis of The Lion, the Witch and the Wardrobe by C.S. Lewis.