H.P. Lovecraft: The Complete Cthulhu Mythos
This is a compilation of H.P. Lovecrafts Cthulhu Mythos.
It is free to download the epub and mobi files, or you can read it online at http://gittobook.org/books/52/lovecraft-complete-cthulhu-mythos
You can make edit to the source if you find any typos or other mistakes at https://github.com/diversen/lovecraft-complete-cthulhu-mythos