"Don't you think we ought to give them a treat for working so hard?" whispered Mrs. Herold to Aunt Sarah. "I would be delighted to have them all to dinner," she added, in her society way, for the Herolds were quite rich.

"That would be very nice, I'm sure," Aunt Sarah replied; "boys always have good appetites after having a lot of fun."

All this time there was plenty of noise back of the scenes, and it was evident something big was being prepared.

Presently Bert and Harry came out and lowered the tent flap, first making sure all the little sightseers were outside.

"They're comin'!" exclaimed Freddie, clapping his fat hands.

"Oh, I'm just so nervous!" whispered Flossie! "I hope none of the animals will get loose."

"Now, ladies and gentlemen," called Tom Mason, appearing at the tent, "if you will just turn round the other way in your seats and face that ring we will give you an exhibition of cowboy life on the plains!"

CHAPTER XV

THE CHARIOT RACE