"I'm sorry," he said penitently. "But what's the latest news from the trenches?"
"Now the Duke tells me that my brother has entered the fatal castle ... you see that daring runs in the blood! Up to a week ago he had sent me a cable every day. Everything was well until Sunday. Then his messages stopped. All this week there has not been a word, not even answering my cables!"
Warren digested this in silence for a moment.
"Why did your Highness leave Spain, knowing all this?"
"Well, Mr. Jarvis, a part of the legend tells that my grandfather had drawn a secret map showing exactly where his treasure was located. It was not safe to let the public know where wealth was located, fifteen years ago, in Spain."
"From the extremely businesslike devotion of that ghost, it doesn't seem that conditions have improved in the district of your exalted estates!"
"Oh, Mr. Jarvis, can't you be serious? I learned from an old letter to my grandmother, from her husband the Prince, that this plan had been hidden in the back-clasp of a locket containing her miniature. Without letting my brother know of the secret, for fear that he would foolishly tell it, I engaged a secret-service man from Paris to look the matter up. When my grandparents died, much of the estate was sold—for the Spanish-American War had wrought havoc with the family income. That locket had been sold to an American collector, and I came to America just in time to save it from being sold to some museum. I pawned my mother's jewels to buy it. That was the locket which dropped from the trunk, in my bedroom last night."
"And you have the locket?"
"Yes—but not my brother!"
"Ah, then, my particular chore as vassal to this haunted family is to find your brother and solve the mystery? In other words, you want me to put this infernal, tin-plated, panhandling ghost out of his misery?"