Turning to a sinister whisper, the laugh throbbed and faded.
The Shadow's laugh faded as the cab swung the corner.
His laugh faded when he saw Arkady coming down the aisle.
The laugh, if there was one, faded, and Conan's grin grew into a full smile.
The Shadow must have heard Gabby's shots, for his laugh suddenly faded.
"The laugh faded from his lips, and he stared at me in great surprise. "
They went three different ways, each following what he thought was the direction from which The Shadow's laugh had faded.
He lets the smile that follows the laugh fade.
He laughed in spite of his reflective mood, but the laugh faded quickly, replaced by a sigh.
A weird laugh faded with the twinkle of the taillight.