"I'm afraid so," I said. "Have you an employee named Freer, an expert on pearls."

"I had until a few days ago."

An exclamation of disappointment escaped me.

"What's the matter with Freer?" he asked.

"I suppose you don't know where he is?"

"On his way back to Holland, I suppose. He came from there ten years ago. Why?"

"One more question first. I am assuming that you know that a certain famous necklace of blue pearls has been stolen?"

"Mount's pearls? Certainly. Everybody in the trade was advised."

"You are sure Freer knew?"

"Certainly. It was his business first."