Eclipse (event)

An Eclipse occurs when either one or both of the Moons of Britannia, Trammel or Felucca, move in front of the sun for a short time, blocking the sunlight. During that time the regions of the planet in the core shadow are as dark as the night during the day. Normally, an eclipse only lasts for a few minutes.

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