My English translation of The Fiend with Twenty Faces has been published by Kurodahan Press with beautiful artwork by Tim Smith III. It's available for purchase on Amazon and Amazon JP. For more information, you can read about the book on the official Kurodahan page.
This was a great undertaking, and it's an honor to translate such a monumental work by a fantastic author. Hopefully, if the Fiend is received well, I'll be able to introduce even more great Japanese fiction to the English world.