Accel World Novel Volume 23 is written by Reki Kawahara.

At long last, Haruyuki and the others have exposed the White Legion as the villains they've always been! Sadly, their celebration is short-lived. Kuroyukihime and the other Kings soon find themselves in a deadly trap laid by White Cosmos herself! And to save them, Haruyuki will have to face his toughest opponent yet: the Sun Goddess, Inti...