Iziah Brown was a man who lived in Eternity, California in the 1880s. He had six wives, Sarah, Simone, Dana, Venus, Millicent and Wanda.

When Josh Larson met Peri Brown and learned her last name, he took her to meet Iziah and his wives. Peri, who had an ancestor named Iziah Brown, thought that one of Iziah's wives might be an ancestor of hers.

Iziah and his wives took Josh and Peri into a cave where the family had discovered the Fountain of Youth. While there, they were surprised by the Master, who was seeking the Fountain of Youth to heal the injuries he received on Sarn. When Peri spilled some of the Fountain's water on the cave floor, dinosaur fossils turned into living dinosaurs, which began to attack everyone in the cave.

The party, except for Dana, escaped in the confusion. Back at home, they were attacked by the Master's hypnotised townspeople. The Fifth Doctor suggested they shock the people out of their hypnotism, so Iziah sang Christmas carols. (PROSE: A Town Called Eternity)

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