The three of them froze and listened. A sound like a mountain stream rushing over stones.

No, a beating of wings.

“Greenies!”

The flying snakes came in a cloud, rushing up from their lair below like swarming bats emerging from a cave at sundown.

Like tiny dragons, most just a few inches long, some as much as a foot long. They had leathery wings and whipped their tails back and forth to sustain a very shaky aerodynamic ability.

Plague, Chapter 15