Mechon 17

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Mechon 17 was a Mechonoid stationed on the planet Hesperus, where the Mechanoids had been preparing for centuries for an eventual human colonisation. As part of this preparation, the Mechonoids defended the planet from a Dalek invasion. During the battle, Mechon 17 was destroyed when it was caught in the crossfire between two Daleks. (PROSE: War of the Daleks)