I asked the question below of making the distinction -- there is whether Peter's seeming double standard is consistent with his character as written or whether it is out of character. I will say that folks are making some assumptions about Edmund. But taking out the seeming hypocrisy, does it make sense that Peter and Susan would be at odds over this? That regardless of what was done in Narnia, what he perceives is being done now strikes him as immoral as much as it strikes Susan as a morally necessary -- the dirty necessity of espionage vs the battle against communism. Is that a legitimate, credible tension?