For an instant he hesitated and then, like a human fly, started up the brick wall.

So you took the ledge around the building to the fire escape like a human fly.

The human fly, and some gestures from the dancers' movement studies.

Like a human fly, The Shadow was passing from one window to the next.

He was like this human fly, just coming right up after me.

Like a human fly, he crept upward in the darkness.

His ability as a human fly enabled him to rise steadily until he reached the third floor.

There were no bars, but the wall was smooth enough to discourage any human flies from trying it.

"It would take a human fly to come up that wall," he said.

"We'd have to be human flies to make it in these getups!"