The shadow took on shape, became light green: an aspen leaf shimmering against the sun.

You know, the aspen leaf reminds me of you in a way.

I shook like an aspen leaf at the sight, and my spirit quaked for fear.

An impostor who knew he'd been found out should have trembled like an aspen leaf in fall.

Then he began suddenly to quiver all over like an aspen leaf.

It trembled like an aspen leaf in an autumn wind.

She hadn't realized until she was bumping along the road away from the dock that she'd been shaking like an aspen leaf.

It perched there passively while the hand quivered like an aspen leaf.

She was completely unaware that her voice was trembling like an aspen leaf.

Rory's hands and arms were trembling like an aspen leaf in an autumn gale.