"You can give us absolutely no idea whatever of his personal appearance?" he inquired dubiously.
"None whatever," I answered. "The dress and mask were effectual in disguising him."
"And the two men who falsely posed as police agents? Will you kindly describe them?" And at the same time he took out a well-worn pocket-book and scribbled in it.
I described their personal appearance as closely as I could, while on his part he took down my statement very carefully.
"This is most extraordinary!" Ulrica observed, standing near me in wonder. "The pair who said they were detectives were exceedingly clever, and are evidently aware of all that has occurred."
"Marvellous!" exclaimed the man reflectively. "Only very clever thieves would dare to walk into the bureau of the Casino and act as they did."
"Have they any connection with the actual assassin, do you think?"
"I'm inclined to believe so," he responded. "It was a conspiracy on their part to obtain possession of the money."
"Of course, I gave it up in entire innocence," I said. "I never dreamt that such a plot could exist."
"Ah, mademoiselle!" observed the detective, "in this affair we have evidently to deal with those who have brought crime to a fine art. There seems something remarkable regarding the appointment in London on the 2nd of June. It seems as though it were desired to gain time with some secret object or another."