Hyouka 4 (氷菓 (4)) is the fourth volume of Hyouka manga series. It has been released in Japan on June 26, 2013 by Kadokawa Comics A and in Germany on August 11, 2014 by Tokyopop.
- Chapter 12: Let's Go to the Film Preview! (part 2) (試写会に行こう！② Shisha kai ni ikō! Dai Ni)
- Chapter 13: The Furuoka Deserted Village Murder Case (古丘廃村殺人事件 Furuoka Haison Satsujin Jiken)
- Chapter 14: The Invisible Intrusion (不可視の侵入 Fukashi no Shinnyū)
- Chapter 15: Bloody Beast