An invisible darkness flowed out of the passage toward him, covering his fire with the pall of venom.

Luminous gray darkness of a cloud shadow flowed across the pod, flattened all contrast.

The darkness flowed like water toward the two ships.

The darkness flowed abruptly down from the sky, rose up from the soil, covered the earth.

In the deep cuts of the canyons, the darkness of shadowed night flowed swiftly over the bottom.

They retreated in light and behind them the darkness flowed before the storm.

The darkness flowed back away from me, and there seemed for the moment a divine meaning in the warmth of the sun.

In the water a further darkness flowed like blood.

The darkness flowed away, revealing what it had left behind.

Indeed, Ditmars' first impression was that darkness flowed almost palpably out of the interior.