"Our fault!" spluttered Nort, his temper rapidly rising. "Why, what have we done except to help you when you needed it? And now all we ask is that you put us in the way of getting back to Diamond X."

"That is just it," said Professor Wright. "We don't want you to go back to Diamond X at once."

"Why not?" hotly demanded Nort. "What right have you got to hold us here? You can't! We'll get away in spite of you!" and his hand, half unconsciously, perhaps, moved toward his holster. But he was surprised to find his wrist seized in a firm grip, while he was violently swung around, his weapon being removed by some one who had come silently up behind him. And this some one was Del Pinzo, into whose sneering, crafty, swarthy face Nort angrily gazed.

Before he could say anything, Nort saw Silas Thorp slip up to Dick, and take that lad's weapon out of the holster. Dick had no time to draw it, even if such had been his intention, which, the lad said later, it was not.

"What do you mean? What's this game anyhow? What right have you to keep us prisoners here and take our guns?" shouted Nort. He took a step toward Del Pinzo, but there was something so sinister in the attitude of the half breed, albeit he did not menace the boy with the weapon, that Nort shrank back.

"I think you had better submit quietly," said Professor Blair. "We intend absolutely no violence, or ill-treatment of you, unless you make that necessary. We admit that perhaps we are acting illegally, and in an unusual manner, but, in a way, you brought this on yourselves, boys. You will not be detained long. In fact, if our plans work out right, you may depart for your ranch this evening."

"Acting illegally!" spluttered Nort. "I should say you were! We'll have you arrested for this, you—you—big——"

Then Nort stopped, for he realized that, though he might apply some well-deserved slang names to the two professors, neither of them was "big." They were small men—at least in stature.

"But you haven't any right to hold us here prisoners!" declared Dick, feeling that he must back up his brother in a firm protest. "We haven't done anything to you."

"Except to turn up where you aren't wanted!" broke in Silas Thorp. "If you'd minded your own business, and stayed away—let us alone—we wouldn't have to do this!"