Deep within the nightmare realm of Casca's dreams, Schierke and Farnese battle endless horrors to reach the dark secret that has imprisoned Casca's mind since the shattering events of the Invocation of Doom. But if they are successful and Casca reclaims her sanity, will she be able to face Guts the Black Swordsman and the harrowing memories of her gruesome ideal he is sure to trigger? Collects Berserk Volumes 40, 41, and Berserk Official Guidebook.