He turned away from the window, and I saw that his eyes had darkened.

Almost a week later, his eyes darkened at the memory.

Her eyes darkened as though a shadow had passed through them.

But after a few days, the eyes of the child darken.

Her emerald eyes darkened as she looked down at his face.

His eyes darkened when he saw a man sprawled face down on the ground.

Her only real chance was to make his eyes darken with passion and then he wouldn't be able to help himself.

Stacey's eyes darkened in understanding, and not just on a personal level.

Her eyes had darkened with an emotion she couldn't begin to analyze.

Mac's eyes usually darkened when he considered the issue of intelligent behavior.