Monsters on the Prowl #16

In "The Forbidden Swamp," Kull and Brule venture into a cursed temple dedicated to the Valusian snake-god, where they face a monstrous undersea guardian. There, they encounter Thulsa Doom for the first time—charming, enigmatic, and claiming to be an ally, he begs to join them on their journey to the City of Wonders.

In "Mister Morgan's Monster," a scientist secretly shelters a banned humanoid robot, unaware that alien forces are manipulating it to turn on humanity. When the robot resists their control and escapes, it saves the day—but its creator believes it has defied him, not knowing it was the act of true loyalty.