In 2008, Japanese publisher Dengeki Bunko released Akumajo Dorakyura: Kabuchi no Tsuisokyoku, a sequel novel to Castlevania: Dawn of Sorrow. Written by Ryogo Narita and overseen by series producer Koji Igarashi (IGA), the novel follows the exploits of Curtis Lang, young apprentice to Julius Belmont. It also features a number of other characters from the game series (as well as relatives to famous characters).
Although the book was never released outside of Japan, an unofficial translation of the work was produced by Castlevania fan Shiroi Koumori. They have kindly contributed that translation to the Inverted Dungeon for fans to read.