Caverns is a 1989 novel written collaboratively as an experiment by Ken Kesey and a creative writing class that he taught at the University of Oregon. The cover of the book says it was written by O.U. Levon—the name of this supposed author, spelled backwards, is "novel U.O." (University of Oregon). The full list of authors is: Robert Blucher, Ben Bochner, James Finley, Jeff Forester, Bennett Huffman, Lynn Jeffress, Ken Kesey, Neil Lidstrom, H. Highwater Powers, Jane Sather, Charles Varani, Meredith Wadley, Lidia Yukman and Ken Zimmerman. Source: Wikipedia (en)