[Dream smiles, pleased with Arthur's reaction. He crosses closer, until he can speak without having to rely on his voice being carried across the vast space.]

In this place... Well, in the real Dreaming's library, every story that has ever been told, imagined, or written, exists in these books. Every story that will one day come into existence are somewhere in these pages, too. And that, too, includes the tales belonging to any given individual's life.

[But those are always changing; and thus the transient nature of the books themselves.]