Another second, and the cavernous mouth would have gulped for its helpless prey.

Or perhaps they sensed further helpless prey not too far away.

While the creature seemed somehow to guess that she must be helpless prey.

Come try my strength, you dogs who thought to attack helpless prey!

This time the predator would face no helpless prey!

He was merely the helpless and disputed prey of competing predators.

As it was, they were upon him, hill bandits on helpless prey.

Because without it, you're no more than helpless prey for your enemies.

There was no helpless prey, or at least any that the creature could see.

Left alone, she had become the helpless prey of astonishment.