I'm embarrassed that I haven't updated this blog since February.
I direct you to the
Shigekuni's April 2009 essay on Jahnn's Perrudja.
Originally published in 1929, the book was never translated into English, and unless I win the lottery it will likely remain untranslated. (I don't play the lottery.)
The German is available from Hoffman und Campe (1985), ISBN 3-455-03630-9.
José Corti publishes the French translation by Reinhold Werner and Jean-Claude Marcadé.