<p>Raven of the Inner Palace Novel Volume 4 was written by Kouko Shirakawa with illustrations by Ayuko.</p> <p>A number of things are disappearing around the imperial estate—several prized silkworm cocoons are missing from the Hakkaku Palace, and Kajo gets pulled into a search for another mysteriously lost object. As these happenings occur, Jusetsu and Koshun continue their investigation into what truly happened in the past. Might a nameless ghost hold the key, or does the truth lie elsewhere?</p> <div style="text-align:center;"> <a href="https://devstore.crunchyroll.com/products/raven-of-the-inner-palace-novel-volume-3-9781685799281.html" onblur="this.style.outline='2px solid transparent';" onfocus="this.style.outline='2px solid #000000';" style="display:inline-block; width:180px; margin:10px; padding:10px 20px; background-color:#fab818; color:#000000; text-decoration:none; border-radius:5px; font-weight:bold; text-align:center; outline: 2px solid transparent; font-size:16px;" aria-label="Go to previous volume in series">&larr; Previous Volume</a> <a href="https://devstore.crunchyroll.com/products/raven-of-the-inner-palace-novel-volume-5-9798888434369.html" onblur="this.style.outline='2px solid transparent';" onfocus="this.style.outline='2px solid #000000';" style="display:inline-block; width:180px; margin:10px; padding:10px 20px; background-color:#fab818; color:#000000; text-decoration:none; border-radius:5px; font-weight:bold; text-align:center; outline: 2px solid transparent; font-size:16px;" aria-label="Go to next volume in series">Next Volume &rarr;</a> </div>