Argone was the planet to which Piritus Elgon was confined for his "scientific crimes". Confined to a castle prison, however, Elgon managed to continue his genetic experiments resulting in the creation of a new species, the Screamers, a product of human and Argonian DNA. The Screamers were confined to the castle following Elgon's death by the authorities on the Eleventh Doctor's request. (COMIC: Screamers!)

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