Berserk Vol. 39 (manga)

To cure the afflicted Casca, Guts and company battle Elf Island's magical defenses and finally reach Elfhelm, where the elven ruler opens the Corridor of Dreams, projecting Schierke and Farnese into the forbidding wasteland of Casca's mind. But horrors lurk there, some more foul than any in the material world!