"Oh, how can he?" asked Sue, wonderingly.

Bunny, who was looking out of the tent, answered:

"He's got hold of the stick I tied on the end of the bell string, and he's shakin' his head up and down, and that rings the bell. Oh, come and look, Sue!"

Then Sue went out from under the carriage-cloth, which was the tent-house, to look.

Surely enough, there stood Toby, and in his mouth was the piece of wood that Bunny had tied to the string that was fast to the bell which hung in a tree back of the tent. Every time Toby raised and lowered his head—"bowing" Bunny and Sue called it—he pulled on the string and rang the bell.

"Oh, how do you s'pose he came to do it?" asked Sue.

"I don't know," Bunny answered. "We never told him, and we never showed him. I guess it's a new trick he's learned!"

"But how did he get out of his stable to come to do it?" Sue went on.

That was easy to answer. Bunker Blue, who came up every day from the dock to clean out the stall and brush Toby down, had left the door open, and, as the pony was not tied in his box-stall, he easily walked out. He strolled over to where the children were playing, and rang the bell.

"Just zactly like he was coming to call," Sue said afterward.