During the eclipse, Whiskey is taken away by an unseen creature.

Initially they thought it was a rat, but then the unseen creature began making different sounds.

They seemed to dance around him, unseen creatures of the air.

And yet, all about me, I could hear the scufflings of a thousand unseen creatures.

"I suppose these unseen creatures told you all this?"

Shadows moved in the darkness, as if my words had stirred unseen creatures to life.

He climbs along the roof tunnel only to be attacked by an unseen creature.

I had found myself being chased by a strange, unseen creature.

He still seemed to be speaking soothingly to the unseen creatures.

A group of unseen creatures known as Crites are set to be transported to another station.