She was a fine tall woman, black and quick and fierce, with a proud way of carrying her head, and a glint from her eye like a spark from a flint.

Mary's eyes glinted with excitement.

The light glinted off the water.

And now I neared the gates, and thought my flight / achieved, when suddenly a noise we hear / of trampling feet, and, peering through the night, / my father cries, "Fly, son, the Greeks are near; / they come, I see the glint of shield and spear, / fierce foes in front and flashing arms behind."