An Interesting Notion

"The precise metaphysical procedures by which a book goes about writing another book need not concern us here. Suffice to say that our human scribes remain entirely ignorant of their possession by bibliographic forces; the agent in question never doubts that his authorship is authentic. A bit of literary history might clarify matters. Unlike Charles Dickens's other novels, Little Dorrit was actually written by The Faerie Queen. it is fortunate that Jane Austen's reputation does not rest on Northanger Abbey, for that author of that admirable satire was Paradise Regained in a frivolous mood. The twentieth century offers abundant examples, from The Pilgrim's Progress cranking out Atlas Shrugged, to Les Miserables composing The Jungle, to The Memoirs of Casanova penning Portnoy's Complaint."

James Morrow, The Last Witchfinder, page 5

Other 'bibliographic forces' at work (proposed because how would I know; I'm not a book, and these things are supposedly hidden from us human scribes):

1. The Awakening revised itself in Candace Bushnell's Lipstick Jungle
2. Vargas Ilosa's The Storyteller decided to get more derisive and hunchbacked in Indra Sinha's Animal's People
3. Virginia Woolf's Orlando got saucy with Jeannette Winterson's Oranges Are Not the Only Fruit.