"listens to her bedtime story"
Page 12 of Through the Looking Glass
Public DomainPage 12 of Through the Looking Glass - Credit: John Tenniel

Ellie is being read to from Through the Looking-Glass (1872), Lewis Carroll's sequel to Alice's Adventures in Wonderland (1865). They are now usually published together as Alice in Wonderland, a novel which is considered one of the classic examples of "literary nonsense," a style Gaiman often incorporates into his own dreamlike stories and dream sequences.

Read Through the Looking-Glass at Project Gutenberg.