Parnassus on Wheels and The Haunted Bookshop

Set in the early 20th century, the narrative follows Roger Mifflin, a traveling bookseller, and Helen McGill, an aging spinster who seeks independence by purchasing his mobile business. Their adventures lead to a sequel where Roger operates a traditional bookstore, "The Haunted Bookshop." Here, he becomes engrossed in his work, oblivious to the espionage and threats surrounding him. Christopher Morley's works blend charm with mystery, captivating readers with timeless tales of adventure and intrigue.