I put a hand against the pulsing mass of blackness.

The pathway from office to the big front door was a mass of blackness.

He was staring at a mass of solid blackness beside the door.

The driver was silent, and almost invisible - little more than a mass of blackness.

The man at the pit was struggling with a mass of blackness.

From behind the man's body leaped a mass of blackness.

The Shadow reached the window just as the two masses of blackness merged.

A detective, turning in that direction, saw only a mass of blackness, which he didn't particularly wonder about until it moved.

Only a close observer would have noted that the mass of blackness was a solid object.

While he was busy with that action, the mass of blackness moved from behind the table.