To determine whether they have found the ruins of Cair Paravel, Lucy suggests that she and her siblings look for the door to the treasure vault which stood at the back of their great hall. As Peter and Edmund begin to tear down the ivy on the wall, Susan gives voice to her fears. She seems to have forgotten all she and her siblings faced—and overcame—during their first visit to Narnia. It’s hard to tell whether her fear arises from the idea that this is Cair Paravel (in which case, the children have returned to a Narnia quite different from…