For a moment the white form remained holding the curtain, then dropped it and stood before it. Graham’s first impression was of a very broad forehead, very pale blue eyes deep sunken under white brows, an aquiline nose, and a heavily-lined resolute mouth. The folds of flesh over the eyes, the drooping of the corners of the mouth contradicted the upright bearing, and said the man was old. Graham rose to his feet instinctively, and for a moment the two men stood in silence, regarding each other.

“You are Ostrog?” said Graham.

“I am Ostrog.”

“The Boss?”

“So I am called.”

Graham felt the inconvenience of the silence. “I have to thank you chiefly, I understand, for my safety,” he said presently.

“We were afraid you were killed,” said Ostrog.

“Or sent to sleep again—for ever. We have been doing everything to keep our secret—the secret of your disappearance. Where have you been? How did you get here?”

Graham told him briefly.

Ostrog listened in silence.