The thick foliage suddenly thinned.
The crowd suddenly thinned.
Moments later, the wods thinned suddenly, and they came upon a swampy area.
The wide, thick river of energy that was pouring up from the ground suddenly thinned, like a good part of it had been drained away into an unseen drain.
The haze thinned suddenly and the wall of fear splintered.
Kira's voice was suddenly thinning to a wheeze.
Clindar breathed a sigh of relief when the trees suddenly thinned.
As they stared at the ghostly shape, the fog suddenly thinned.
The trees suddenly thinned, and sunshine flooded down here and there, almost dazzling the two men and the three boys.
Then the crowd coming towards us from the gate was suddenly thinning.
