When he had received the letter, the joyful proclamation from Edmund and Lucy that they, along with Eustace, had again visited Narnia, he had not known what to feel. Nostalgia for his country, and perhaps a touch of envy, but mostly joy for them. At least that was what he felt he ought to feel. Instead, he felt guilt. Guilt for the fact that his family had undoubtedly been left to face hardships without him, but guilt for the lack of faith in both his siblings and in Aslan that he felt that they would be endangered without his protection.