With this arrangement the line could not tighten and pinch, and still was tight enough to hold Bobby securely.
"Now," said Jimmy, indicating a high bowlder, "I'll bring the line around this rock, so I'll have a purchase on it and it can't slip away from me, and let it out as you climb down.

You holler when you want to stop and holler when you want to come up." The plan worked admirably for a while.

Very slowly Bobby descended, calling out now and again for Jimmy to "hold" while he picked eggs from nests on shelving rocks.
At last his bag was full, and he was ready to ascend.
"All right, Jimmy.

Pull up now," he called.
Jimmy pulled, but pull as he would he could not budge Bobby one inch.

He did not dare release the line where it made its turn around the bowlder, for without the leverage he feared the line would get away from him, in which case Bobby would crash to the bottom of the cliff.