"Then you won't send him away?"
"Listen to me while I talk to you straight," said Joe Cumberland, "and accordin' to the way you take it will depend whether Dan goes or stays. Will you listen?"
"Dear Dad, with all my heart!"
"Humph!" he grunted, "that's just what I don't want. This what I'm goin' to tell you is a queer thing—a mighty lot like a fairy tale, maybe. I've kept it back from you years an' years thinkin' you'd find out the truth about Dan for yourself. But bein' so close to him has made you sort of blind, maybe! No man will criticize his own hoss."
"Go on, tell me what you mean. I won't interrupt."
He was silent for a moment, frowning to gather his thoughts.
"Have you ever seen a mule, Kate?"
"Of course!"
"Maybe you've noticed that a mule is just as strong as a horse—"
"Yes."