Eclipse (event)

An eclipse occurs when a moon comes between the sun and the planet it orbits, reducing the amount of sunlight experienced by the planet for a few minutes. When one or both of the moons of Britannia, Trammel or Felucca, move in front of the sun certain regions in the moons' shadow are as dark as the night.

An eclipse could happen naturally in Ultima VI, or could be artificially induced by using the spell Eclipse.