A single ray of light, coming from within that barrier, would have meant betrayal.

But then a single ray of hope came to her.

Not even a single ray of light penetrated the perfect black.

The latter, as you see, have dark nights of 354 hours, without one single ray to break the darkness.

His conduct was the one single ray of light in an otherwise dark day.

He has informed me that there is a single ray of hope.

Ferris felt attention on him, like a single ray of heat.

Not a single ray of light from the moon pierced through the clouds.

They reached the gate without the darkness being illuminated by a single ray of light.

It was growing light and the sun poked a single ray beneath the low black clouds.