There came a crackling, a darkness of vast wings flinging down upon us.
Something huge and dark was blotting out the sunlight, vast wings spread.
His enemy halted again, facing him, and the shadow about it reached out like two vast wings.
And there was that rushing sound of vast wings beating.
As she spoke her form dilated, the vast wings expanded.
He squinted at it and discerned the slow beat of vast wings, far away.
She heard vast wings; the hair lifted from her forehead in their wind.
A great cloud was eating up the stars, spreading two vast dark wings south and north.
A shadow, as of vast wings, occluded the sky without actually blocking the light.
She half heard the dull boom of air being compressed by vast wings.