"Parnassus on Wheels" by Christopher Morley is a novel published in 1917. Helen McGill, a 39-year-old woman weary of caring for her self-absorbed author brother, impulsively purchases a traveling bookstore from its eccentric owner. Drawn by a horse named Pegasus, this mobile literary business becomes her ticket to a long-overdue adventure. Morley's debut novel celebrates books, independence, and the courage to break free from dutiful routine to discover life on the open road. (This is an automatically generated summary.)