Mulliner, Lady Lethmere’s maid, replied, and a few minutes later Lady Lethmere herself spoke to me.

“Oh, I’ve rung you up at your rooms half a dozen times to-day, Mr Munro—but could get no answer!” she said.

“Being Sunday, my man is out,” I exclaimed. “I’m down here at Gunnersbury.”

“Can you take a taxi at once, and come over and see me?” she urged. “I want to speak to you immediately.”

“What about?” I asked anxiously.

“I can’t say anything over the telephone,” she answered in a distressed voice. “Do come at once, Mr Munro. I am in such trouble.”

I promised. And after briefly relating the curious conversation to Teddy, I found a taxi, and at once drove to Cadogan Gardens.

“Mr Munro!” exclaimed Lady Lethmere, looking at me with a pale, anxious expression as I entered the morning-room. “Something has happened!”

“Happened—what?” I gasped.

“Roseye! She went out yesterday morning to go over to Hendon to meet you—she told me—and she’s not come back!”