Frank Norris based his 1901 novel The Octopus (A Story of California) on the Mussel Slough Tragedy of 1880, a bloody conflict between ranchers and agents of the Southern Pacific Railroad. The central issue was over the ownership of the ranches, which the farmers had leased from the railroad nearly ten years earlier with intentions of eventually purchasing the land. Although originally priced at $2.50 to $5 per acre, the railroad eventually opened the land for sale at prices adjusted for land improvements; the railroad’s attempts to take possession of the land led the ranchers to defend themselves as depicted in the book.