1.   Any minute now his eyes would darken until they seemed almost black with the sheer emanation of his will.

2.   His eyes had immediately darkened, and his entire body had taken on an aggressive stance.

3.   Marc stopped laughing and for a moment his eyes darkened.

4.   She laughed shrilly, seeing the way his eyes had darkened in a way that made the breath lodge hard and heavy in her throat.

5.   Ruth shook inside as she watched his eyes darken furiously.

6.   His eyes darkened as he thrust the cool-box towards her.

7.   His eyes darkened just a little.

8.   She forgot her dream as she saw the blue eyes darken almost to black.

9.   His eyes darkened as he looked down at her.

10.   She nodded and flushed as she saw his eyes darken.