Xi III was the third moon of the planet Typhon Xi. Its surface was completely covered in water, save one very tall and steep mountain rising from below the water, known as The Typhon Spear. Xi III was scarcely inhabited, due to its lack of cities; the only settlement on the moon was a Typhon Republic Agriculture and Resource Corporation outpost, built on stilts over the water, used to harvest and transport water to planets such as Typhon Prime, or Typhon Alpha.