"Ho, needn't come if you're scared," retorted Nate.

"Who said I was scared? But I'm not your 'caddy,' I won't go another step," gasped Jimmy.

Still he did not stop climbing. Hadn't Nate "stumped" him; and hadn't he "taken the stump," agreeing to follow his lead? Besides, Nate was already on the roof, and it was necessary to catch him at once.

Jimmy reached the roof easily enough and darted toward Nate with both arms out-stretched. But by that time Nate had turned around and begun to slide down another ridge-pole, shouting:—

"Here, my caddy, here I am; catch me, caddy!"

It was most exasperating. Jimmy saw that he had been outwitted. On the solid earth, running a fair race, the chances were that he could have beaten Nate. But was this a fair race?

"No, I'll leave it out to anybody if it's fair! Nate Pollard is the meanest boy in California," thought angry Jimmy, as he started to follow his leader down the ridge-pole.

At this moment something hit him just below the knee and held him fast. In his haste he had not stopped to notice that the chimney was of the very sort he had just described to Lucy—built of tiles and held on to the roof by wires. He was caught in these wires; and whenever he tried to move he found he was actually pulling the chimney after him! Nate, safely landed on the ground, called back to him in triumph:—

"Hello, Jimmy-cum-jim! Hello, my caddy! Where are you? Why don't you come along?"

Jimmy was coming as fast as he could. He lay face downward, sliding along toward the edge of the roof, and carrying with him that most undesirable chimney! What would become of him if he should fall head-first with the chimney on his back?