"But, my boy," expostulated the colonel, "I can't have such a man as that here. Think of an army officer with such a habit."

"It is not a habit," cried Mark. "He did it for fun—he knows no better. And I will guarantee that he does not do it again. If I had only known beforehand he would not have done it this time."

"Do you mean to say," demanded the other, "that you have sufficient influence over him to see that he behaves himself?"

"I mean to say just that," responded Mark, eagerly, "just that! And I will risk my commission on it, too! I offer you my word of honor as a gentleman that Mr. Powers will give you his word never to touch another drop of liquor in his life. And there's no man on earth whose promise you could trust more."

Mark halted, out of breath and eager. He had said all he could say; he had fired his last cartridge, and could only sit and wait for the result.

"You said you would like to reward me!" he cried. "And oh, if you only knew what a favor you could do! If you will only give him one chance, one chance after he has realized his danger. It is in your power to do it—the secret is yours to keep."

Colonel Harvey was pacing the room in his agitation; he continued striding up and down for several minutes in thought, while Mark gazed at him in suspense and dread.

At last he halted suddenly in front of Mark.

"You may go now, Mr. Mallory," said he. "I must have time to think this over."

Mark arose and left the room in silence. He could not tell what might be Texas' fate, and yet as he went he could not help thinking that the colonel's hesitation meant nine points won of the ten—thinking that one more chance was to be granted.