Day of the Sepulchral Night
this is the Zelosian name for a complete solar eclipse which occurs on the planet Zelos II. When one of the planet's four moons eclispes the sun Zelos, the darkened skies suddenly reveal the presence of the other three moons. They appear as if by magic as the planet is plunged into total darkness. The Zelosian fear of the dark is extremely heightened during this eclipse, and so this day is especially frightening to them.