Related Clues:

• Dusk
• What nyctophobes fear
• Like a moonless night
• Not currently in use, as a theater
• Murky
• Not illuminated
• Sombre
• Twilight time
• With 28-Across, a Hogwarts class
• Lacking light
• With 54-Across, black magic
• The ''good'' chocolate
• With 4-Down, black magic
• Turkey option
• Not lit