Dumarest is summoned by a monk of the Church of Universal Brotherhood on behalf of Selene, a woman who befriended him upon his arrival on Scar. She has been mortally wounded in an attack, and Duamrest learns that her attackers were also looking for a ring with a red stone. Dumarest seeks out the attackers and kills the only one who is still on Scar. The fight is witnessed by Jocelyn, Lord of the planet Jest, and his entourage. Jocelyn’s subplot is only loosely intertwined with Dumarest’s adventure, but involves the machinations of the Cyclan to dominate both Jest and Eldafane, the homeworld of Jocelyn’s betrothed. Jocelyn entertains Dumarest on his ship, confesses that he also distrusts the Cyclan, and hints he might be able to help Earl find Earth. The conditions on Jest have made the society rather bizarre, and Jocelyn is an unusual character who believes in nothing other than fate and the laws of chance, and behaves with equal parts philosophy, good humor, and cruelty. Dumarest is so unsure of whether Jocelyn can be trusted, he’s happy just to be allowed to leave the ship alive.
Earl and Clemdish go back after the golden spore (in a nearly inaccessible place, else it wouldn’t be rare) and after a nearly fatal mountain climbing adventure, manage to retrieve it. Naturally, they are almost immediately set upon by claim jumpers who kill Clemdish and demand not only the golden spore, but Earl’s ring as well. Dumarest releases lethal parasitic spores from a common but deadly variety of fungus, killing his attackers, and leaps from a cliff into the ocean to avoid their fate. Caught by a riptide, he drifts for days, floating on the full bags of golden spore he and Clemdish harvested. Near death, he is rescued by Jocelyn on the condition that Dumarest give Jocelyn all of the golden spore he has collected (Jest is a poor world, and the golden spore is worth a lot).
Upon his return to the mushroom processing camp, Dumarest has a final confrontation with Jocelyn, Cyber Yeon (who is part of Jocelyn’s fiancée’s dowry, and is the Cyclan’s man on the scene to bring Jest and Eldafane under Cyclan control), and Meoud, the foreman of the camp. Dumarest deduces that the foreman is the only person who was directly connected to all of the attacks, and kills him. He further accuses Yeon of secretly pulling the foreman’s strings, which Yeon confirms by trying to kill Dumarest and Jocelyn (two birds with one stone). Dumarest kills Yeon, saving himself and Jocelyn. A grateful Jocelyn gives Earl the clue about Earth he hinted at earlier, and makes him an offer: the flip of a coin. If Earl loses, he comes to Jest as an adviser to Jocelyn. If Earl wins, he gets the cost of ten High passages. Earl wins, and the book ends.