At this information he stood transfixed with amazement. Nothing was more probable than that Don Carlos had been in the castle, though he did not suppose that Don Carlos would rob travellers or hold them to ransom. And then there came upon him the bitter thought of all that he had lost by the escape of this distinguished personage. Had he captured him, he would have been certain of immortal glory—of advancement, of high command, honor, wealth, everything which a grateful government could bestow. And all had slipped out of his hands by the narrowest chance. The thought of that lost glory well-nigh overcame him.

"I didn't see him," he groaned, as he stood clasping his hands in an attitude of despair. "He must have left before I came."

"He left," said Katie, "while you were in the castle."

"Ah!" said Lopez, "how do you know that?"

"Because," said Katie, "I saw him when he left."

"But you were in that room. How could he leave that room?"

"I saw him when he left," said Katie, "that is all. You need not believe me unless you wish, but it is true."

Lopez had to believe her.

"And what is more," said Katie, "you will not remain here long. He will soon be back."

"Pooh!" said Lopez, "he can do nothing. He can't get in here. This castle is impregnable to anything less than an army."