"I know I can climb down there." "I've tried it plenty of times," said Jimmy, "and I don't believe it can be done.

You can't get in from this end, and the top hangs over so you can't get in from the top." "Let's go up on top and try to get down, anyhow," insisted Bobby.

"I know what! There's a harpoon line in the skiff.

Father always keeps it stuffed in under the seat aft.

We can tie an end of it under my arms and you can let me down, and then pull me back." And so without loss of time the young adventurers secured the harpoon line, and climbing out of the gully followed the top of the cliff to a place where birds were numerous.
Jimmy tied a bowline knot at the proper distance from one end of the line, passed the line around Bobby's body under the arms, ran the end of the line through the loop, and secured it.