When he died in 1973, Chicago janitor Henry Darger left his own monument: a 10-volume novel entitled The Story of the Vivian Girls, in What Is Known as the Realms of the Unreal, of the Glandeco-Angelinnian War Storm, Caused by the Child Slave Rebellion.

Discovered by his landlords, the fantasy manuscript, illustrated with hundreds of drawings and watercolor paintings, totaled 15,145 single-spaced typed pages. It may be the longest novel ever written.