The smile of The Shadow changed to grim, foreboding laughter.

I tried to question him and got that grim mental laughter.

His grim laughter whispered as he vanished among the dark streets of the water front.

The Shadow's reply was a whisper of grim laughter.

Ross gave a short bark of grim laughter.

The grim laughter of The Shadow echoed in the dark sanctum.

The Shadow's grim laughter ceased as a tiny white dot of light glowed on the wall.

The whisper of his grim laughter echoed softly from the rocky walls.

His grim laughter rasped as he saw a discarded garment lying on the floor.

The echo of his grim laughter died in the darkness.