"Stop!" Joseph exclaimed.

Fischer wheeled round upon him.

"Well?" he exclaimed. "Get on, then. Who?"

Joseph moistened his lips. He was still feeling sore and dizzy, but he
began to see his way.

"You noticed, perhaps," he said, "the American girl--the beautiful
young lady with this guy's friends? She was waiting with the others for
Captain Graham to come down. I saw her go up the stairs. I saw her come
down again, three minutes later."

"Miss Van Teyl?" Fischer exclaimed, with a frown. "You're mad, Joseph!"

The negro laughed grimly.

"Am I!" he retorted. "I tell you this, Master Fischer. She was in
Berlin where I was, and she was at the Embassy every day. She was asked
to leave there. They put her over the frontier into Holland. I knew her
when she came into the restaurant. She's no society young lady, she
ain't! Bet you she was on to the goods."

Fischer hesitated for a moment. The thoughts were chasing one another
through his brain. Then he took up the receiver from the telephone
instrument which stood upon the table.

"1560 Mayfair," he asked in a low tone.