phantom (n)

A scary phantom appeared from out of the darkness.
A phantom silently glided through the moonlit room, leaving a chill in its wake.
Legends spoke of a haunted mansion where the tortured soul of a lost lover appeared as a phantom each night.
The old theater was rumored to be haunted by the phantom of a long-deceased actor who loved the spotlight.
In the dense fog, a phantom figure emerged, sending shivers down the spine of anyone who witnessed its spectral presence.