“Jim, how are we to climb the wall?”

“We won’t climb it,” said Jim. “See! right here! Three empty boxes and a board! We are going over the roof.”

“But we can’t get down on the other side,” whispered another boy.

“Yes, we can,” replied Jim triumphantly, as he held up a coil of small rope that he pulled out of a box. “Wait and see. Let’s pile up these things.”

It was easy work for five strong, active boys, to put those boxes one on top of another, but even then the board only reached from the topmost box to a little above the eaves of the building.

“Now, boys,” said Jim, “soon as I’m up, throw me the end of the rope.”

Not many young fellows could have gone up that board as he did, or, afterward, up the steep, slippery slates of the roof, with a coil of rope in one hand. It was first-rate gymnastics, with a chance for a slide and a heavy fall, but Jim reached the ridge, just as one of his followers came up over the eaves, after making several small failures to climb the board.

“Now for the rope,” said Jim, as he passed it around a chimney that came up through the ridge, tied it at the ends and threw the loop down toward the head of the board. He could hold it steady and it was all they needed. Very quickly, all five were perched in a row, like blackbirds on a fence.

“What’s next?” they asked.

“Glad we all had so much practice on the training ship,” replied Jim. “It takes a sailor to go down by a rope. This one’s long enough to hang down, double, almost to the ground. It won’t be much of a drop, then. I’ll go first. Hold hard! Steady, now!”