There was in every hollow
A hundred wrymouthed wisps …
—Dafydd ap Gwilym, 1340
Perhaps you've seen it—an unexplained, furtive scrap of light floating in the darkness, something eerie, haunting, disturbing! It might be a faint yellow glimmer or a diffuse green glow, a smoldering flame, or a lambent blue form that grows and shrinks and writhes and seems to disappear when you look directly at it, and then reappear as you look away. Could it … possibly … really … maybe … be a ghost?
ELINOR DeWIRE is a freelance writer who specializes in marine/maritime topics and astronomy.