Goblin Slayer Novel Volume 4 is written by Kumo Kagyu.

Goblin Slayer, Spearman, and Heavy Warrior received a dangerous quest to bring the fight to the Demon's Castle. As they steel themselves for the challenge that lies ahead, Cow Girl and Priestess have a casual day out on the town. High Elf Archer tells a story about how she, Dwarf Shaman, and Lizard Priest came together, overcoming racial grudges to become close party members.