I was pretty sure that there was a description of the book somewhere in the tumblr, and here it is: 'Moebius’ obscure 40 Days In the Desert fascinates me. The book is near impossible to find, except occasionally on Japan’s Amazon listing. A wordless tone poem, that I assume is 40 pages in length, it’s comprised of single images for each page that construct a narrative that’s up to interpretation. I believe that this is an elaborate attempt on his part to share his one experience on mushrooms, which he described as “so powerful that I vowed never to do it again”.' (Posted on November 18, 2010.)