After a brief rest in town, Goblin Slayer and his party venture back into the sewers to investigate the source of the goblins. As a precaution, Goblin Slayer brings along a canary to warn them of any poison gas. The party delves deeper into the sewers but are led into a trap and locked in a tomb. The goblins also begin pumping poison gas into the room which the canary warns the party of, and they successfully seal off the vents to prevent the gas from entering. The goblins then resort to attacking the party directly, and it is revealed they are being led by a goblin champion...