"To Kill a Mockingbird" as Clark's favorite book is comics canon (although there is more than one story in fanon with that),

I think "The Return of Superman," With 3(4??) Supermen, the real Superman tells Lois the name of this book and that's how she knows he's the real deal.. or something like that..

wave

If she had to move heaven and Earth, perhaps come back to haunt Perry and explain the story after they'd killed her, she would do it.

Waking a Miracle by Aria