But he put these thoughts to the back of his mind now, with a silent promise that they would be uttered one day soon.

A quick smile, another silent promise to return if necessary, and he raced north again.

He'd made his silent promise to a dying man, and no promise could be more important than that.

But he made himself a silent promise to pursue the matter.

But they would not have her, she swore in silent promise.

After this, he makes a silent promise with his father to "stick up for the long shots".

Antonidus made a silent promise to slip away before the end came.

Janeway nodded a silent promise to return for him if she could.

She'd told on me without the slightest hesitation, and did no more than grin at my silent promise to get even.

It was a silent promise he made to himself during the ceremony.