A couple of minutes later he was ringing the bell at Don Esteban's house. He was hastily admitted and at once conducted to that gentleman's presence, where he narrated hastily what had occurred at the other house.
"Who is this old man?" Don Esteban asked of Donald.
Donald explained as best he could.
"Which is mighty little," he declared when he had finished. "He is the greatest mystery we have ever encountered. There is no doubt that he is an Indian, but he speaks English like an Englishman."
"I must go and see him at once," declared Don Esteban, rising.
"I don't think you can, sir, to-night. I don't think the physician would permit it."
"Well, then, the first thing in the morning. I thank you, young sir. Won't you have a glass of wine before you go?"
"No, I think not," replied Donald. "I've never acquired that Mexican habit yet. Good night, sir."
He left the house feeling greatly relieved that he had reported the finding of the box and walked slowly along whistling merrily. As he turned off the street upon which Don Esteban lived he heard soft footsteps behind him and turned hastily.
But he was too late.