Bet slid down easily, her nimble body could cling to the sheer cliff, or so it seemed to those who watched her.
"I think we'll call you the goat girl, Bet, you sure can climb rocks," exclaimed Kit admiringly. "I never could do it."
"And you an Arizona girl?" laughed Bet.
"An Arizona girl only knows how to ride horses," retorted Kit.
"And if they can all ride the way you can, they need no other accomplishment." Bet ran to join the professor.
The old man was examining the ground in the direction the arrow was pointing.
"Who ever would have thought to look up at that rock for an arrow," Bet said excitedly.
"But you see, Bet, we're starting in the middle. Somewhere there's a map that shows all this, and by that map you would know you had to look at that cliff for the arrow," explained the professor seriously.
"But where to next?" asked Bet.
"Follow the arrow, that's all we know," answered Kit.