These were ghostly manifestations, rather than human.
In October 1999, documentaries of places with ghostly manifestations aired on the History Channel.
Here, in the great reception hall of Delthern Manor, stood the amazing being whose laugh had been taken for a ghostly manifestation.
Then, into that place of death, came a sound that was almost a ghostly manifestation.
If Rosalind suffered enough emotional turmoil when she died, her nanites were almost certain to create a ghostly manifestation.
There is a pattern to so-called ghostly manifestations, and that is the element of violent death.
She studied the situation while she waited for a little chaos to set in from the ghostly manifestations.
Then, like a ghostly manifestation, the cromlech was peopled by figures in gray!
This ghostly manifestation might have made a greater stir if it had not been so completely overshadowed by the sinking of the Lusitania.
Next, Janice caught the blinks of a tiny light, which made her think of other ghostly manifestations.