[1] Surveyor Adrian Frome, one of a three-member survey team working in the jungles of the planet Vishnu, is captured by the centaur-like Dzlieri natives after his supervisor is killed and the third member deserts.

Taken to the Dzlieri base, he finds them taking orders from Sirat Mongkut, a Terran previously lost in the area, who is pretending to be a god and has ambitions of uniting the centauroid tribes under himself as emperor.

Successfully rescued, he puts in for a transfer to Ganesha, another world in the star system, to escape Elena in turn; having formed a romantic liaison with her, he has since discovered she is an incurable religious fanatic.

The planet Vishnu is a tropical world occupying the same star system as Krishna, de Camp's primary setting for the Viagens Interplanetarias series.

As dated in The Continent Makers and Other Tales of the Viagens and the 1959 version of de Camp's essay "The Krishna Stories", "The Galton Whistle" takes place in the year 2117 CE.