Into the Deepest, Most Unknowable Dungeon Vol. 16

ABANDON THIS PLACE! After months of exploration and battles, Jean's party has begun a long vacation, but the deepest, most unknown dungeon is creeping ever closer. Endless monsters and hordes of demihumans were only the beginning. The human forces may need to retreat from the continent itself, and as soon as possible! In this hard-bitten world bereft of magic and cheat skills, the heart of the unknown finally reveals itself!