Lucy buried her head in his mane to hide from his face. But there must have been magic in his mane. She could feel the lion-strength going into her. Quite suddenly she sat up. “I’m sorry, Aslan,” she said. “I’m ready now.” “Now you are a lioness,” said Aslan. (From my lovely friend Irene)
:-D C.S. Lewis planned to write about Susan's return to Narnia but died before he could, he confessed that she was always going to find her own way back and the book was going to be called "Susan of Narnia" :`P
Okay this is good: He is obviously referring to when Lucy discovered Narnia. However, they ruled in Narnia for long enough to grow up, at least twenty years, then they came back to England for another year: AND THAT WAS THE LAST TIME HE DIDN'T BELIEVER HER! For a lifetime, and then some, he has trusted his little sister, even when it seems crazy.