She hesitated a foot before the opening, afraid the movement might betray her.

He needed to get at the weapon but feared that any movement would betray his location.

What if that movement had betrayed him to those in the flitter?

Every movement should have betrayed his inner knowledge that there was no hope for him - he could not win.

Some tiny movement of Tombstone's eyes must have betrayed him.

A restless movement on his part betrayed that she had provoked him once more, but in a different fashion.

Michael was holding himself rigidly, as if he were afraid a movement would betray him.

Occasionally, the movements of his eyes betrayed that he was dreaming.

Any further movement of the door would betray him.

Only the movement across the bars of light betrayed it.