How robin changing affected ay the end of the story?

Robin's unexpected illness does make him act somewhat selfishly, however; his good upbringing to this point in his life and the compassionate and patient influence of Brother Luke, does eventually overcome this behavior. Most people that have conditions similar to Robin's act poorly until they adjust to their problems. Some never recover, so Robin's actions are completely understandable and some 10 year old boys act selfish and bratty without any of the issues that plague Robin.

Later, when Robin goes to Lindsay and meets Sir Peter, he tells him that he will not make a good page because he is unable to walk; but Sir Peter says that if this door is closed, another will open. Brother Luke has been telling him about open doors as well, so many of the adults seem to know about these doors. The door is basically about finding one's own identity in life, which Robin does begin to do by the end of the novel. We know he will continue to mature as he gets older, but he has made a good start in the months that this story covers. In the end, Robin acts bravely by getting help for the castle and saves the day.