Though, Billy was a superhero in his own right. He had helped save the world after all. Something that she would never forget. Just as she'd never forget the fact that she'd had to revive the boy too. There was no way she could allow the world to lose another hero. Or parents to lose a son.
"Then I'll have to see if they have it."
If they did then it was something that she'd get for Billy. It wasn't bound to be the only book that she got for him, but it would be something that she definitely wanted to find. Especially when she was curious on what was in it herself.