Lieutenant Devika Cullen was an astronaut in the 2090s. Her hero was Adelaide Brooke. On her third mission to the atmosphere of Venus with Rick Attah in the Genetrix, the probe was attacked by the Wispies. The Twelfth Doctor and Clara Oswald arrived on the Genetrix to help them. One of the Wispies had entered the probe and was attacking the controls because the probe's atmospheric sifters were sucking up its relatives. The Doctor purged the sifters, and the Wispies lifted up the Genetrix, returning Devika and Rick to the Lovell Platform. (PROSE: Sunset Over Venus)

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