Dell, Floyd. Moon-Calf (New York: Knopf, 1921) 394 p.
As Felix Fay grows up in the Midwest, he loves books. The Librarian in the town of Maple, a strict but kindly old lady,  gives Felix books to read. She only gives him children's books, but as he finds more interesting books to read he tells her they are for his mother and she allows him to borrow them. (p. 42-45). Later, in high school,  Felix gets elected librarian of a school club and vigorously organizes a library (p. 105). Felix spends his evenings browsing the stacks at the public library. In the library he is a free citizen of a great world.  (p. 109).
In the larger town of Port Royal, Felix meets Helen Raymond, the Head Librarian of the Port Royal Public Library.

But to him she was not so much the librarian as the spirit, half familiar and half divine, which haunted this place of books. She might have been evoked by his imagination, even as were the shining spirits of wood and stream in an earlier day. She had, like these books, a spirit above the rush and stress of common life. Something in her light step, her serene glance, personified for him the spirit of literature; she was its spirit, made visible in radiant cool flesh.
More lately he had noted her quick, whimsical smile, and heard her soft, impetuous speech. But he had never thought of her as quite belonging to the world of reality. He knew librarianesses, and they had been kind to him. But of her as having any relation to himself he had never dreamed.
And now suddenly, breaking through the invisible veil behind which she had moved, she appeared to him as a person, a woman, tall, slender, beautiful, smiling, holding out her hand. (p. 173-74).

Helen introduces Felix to other writers and poets and helps to get his poems published.