Even without it, Conan had the sense of invisible eyes watching him from deep within the surrounding hills.

Its invisible eyes passed across Simon like a freezing wind.

The thing in the darkness shifted, turned its invisible eye upon him.

It was as though a thousand invisible eyes clutched after him and his brain.

They gathered in the darkness and went still, invisible eyes glittering.

The door opened as though invisible eyes had witnessed the little man's approach.

Despite the hour, he was wearing sunglasses, his eyes invisible behind the lenses.

Wondering if all mothers had invisible eyes in the back of their heads, Bear watched the boy.

Every hood seemed turned so that invisible eyes were peering at him.

It was as if invisible eyes were staring at her all the time.