"Oh, yes, I heard about that," said the Monkey. "Only I heard it was a star, not the moon."

And then he noticed that he was tied on rather tightly, and he felt there was not much chance of his falling. So he did not hold so hard to the dog's back, and Carlo was glad of this.

Herbert and Dick, looking back to see if Carlo was running after them (which indeed he was) saw the Monkey bobbing to and fro on the dog's back.

"It looks just as if the Monkey was holding on, doesn't it?" asked Dick of his chum.

"Yes, it does," admitted Herbert. "Wouldn't it be funny if my Monkey was really alive, as your dog is, and could ride him whenever he wanted to?"

"It would be funny," said Dick. "Very funny!"

Pretty soon the boys came to a little brook that ran through the meadow. They stopped on the edge, and looked down into the water in which tiny fishes were swimming.

"Shall we jump across the brook and run in the field on the other side?" asked Dick of Herbert.

"If we do, won't Carlo jump over, too?" asked Herbert. "And if he tries to jump over, he may fall in and get all wet, and so will my Monkey."

"Carlo won't mind getting wet!" laughed Dick. "But it might not be good for your Monkey. Perhaps we'd better stay on this side of the brook, and then everything will be all right."