James Branch Cabell’s Jurgen – as well as several other works by him – has just been made available for download from Project Gutenberg.
Visitors will probably know that the book – once suppressed – is inspired in part by Aleister Crowley and Thelema and includes a version of the Gnostic Mass.
The text can be downloaded for free from here: http://www.gutenberg.org/etext/8771