Things in the dark, moving shapes with no faces?

All she could see, out there in the grass-scented night, were moving shapes.

I don't know how many people passed me by; I was aware of them only peripherally, as moving shapes.

For a moment the darkness came silently alive with moving ghostly shapes.

He could see their black, moving shapes through the windshield and in the rear-view mirror.

She saw moving shapes, and without waiting to find out just what they were, she fired off a series of quick shots.

They saw no dark, moving shapes within the fuzzed light and mist.

To the north he could just make out hills with no trees at all, speckled with moving shapes that must be horses.

He actually saw them, moving shapes in the darkness, the pale lapels of their uniforms.

Past him as he went on moved other shapes.