"In Vienna?" I queried.

"When did he leave England?" asked the detective, ignoring my question.

"The very day you left," I replied promptly.

"Come, this is getting interesting," he said. "Tonight we will most certainly let the Pirate do his worst on the roads. We will look for a clue to the mystery of his identity nearer home." He looked at his watch. "It's a little too early to pay our call, so if you don't mind, I will come in and we can discuss the matter at leisure."

To say that Forrest's enigmatic utterances filled me with excitement, very inadequately expresses the state of my mind. He followed me indoors, and, while I mixed a drink for each of us, he saw that the windows and doors were closed. Then seating himself in an easy chair, he selected a cigar and remarked—

"Now we can talk."

"I thought you only intended to go to Amsterdam," I began.

"That was my intention," he replied. "But before giving you the results of my inquiries—it won't take long, by the way—I should like to ask you one or two questions, if I may?"

"Fire away," I said.

"Did you mention to any one where I had gone?"