"The expected guest has arrived," Henson said.

There was such a queer mixture of snarling anger and exulting triumph in his voice that Chris looked up. Just for an instant Henson had dropped the mask. A ray of light from the open door streamed fully across his face. The malignant pleasure of it startled Chris. Like a flash she began to see how she had been used by those miscreants.

"He is very handsome," she contrived to say, steadily.

"Handsome is that handsome does," Henson quoted. "Let us hope that Dr.
Bell will succeed in his mission. He has my best wishes."

Chris turned away and walked slowly as possible up the stairs. Another minute with that slimy hypocrite and she felt she must betray herself. Once out of sight she flew along the corridor and snapped up the electric light. She fell back with a stifled cry of dismay, but she was more sorrowful than surprised.

"I expected it," she said. "I knew that this was the thing they were after."

The precious copy of Rembrandt was no longer there!

CHAPTER XXXI

BELL ARRIVES

There were more sides to the mystery than David Steel imagined. It had seemed to him that he had pretty well all the threads in his hands, but he would have been astonished to know how much more Hatherly Bell and Enid Henson could have told him.