"Mr. Okiu?" asked the secret agent.

"He is at home," replied the fat man. "Who are you?"

The secret agent gave his name, and at once the man stood aside.

"I will tell him that you are here," said he, as Ashton-Kirk entered. "Will you sit down?"

He indicated a hall chair with much politeness; but Ashton-Kirk nodded and remained standing. There was a single incandescent lamp burning in the hall, and its yellow rays barely lit up the dark corners. At the end was a railed stairway which led to the rooms above; and along the hall there was a dark array of tightly-closed doors. However, these things got but a glance from the secret agent. The Japanese who had admitted him attracted his notice.

This latter had a huge, round head and a fat, brutal face, and his immense body gave him the appearance of an overfed animal. His skin glistened with a high-smelling oil; when he moved, its scent was particularly heavy and unpleasant. Everything about him seemed to promise inertia, ponderous movements, shortness of breath. But this promise was not kept, for he passed down the hall with a light, quick step; then he sprang at the staircase and went bounding up like an enormous rubber ball.

There was something in this so unexpected, so utterly tiger-like, that Ashton-Kirk felt the nerves of his scalp prickle.

"Rather a formidable sort," he murmured, and as he spoke his hand went to his outer coat pocket as though to assure himself that the squat, black pistol was still there. "One might hold him off and hit him to pieces; but let him break down a guard and come to grappling and he'd afford astonishing entertainment."

In a few moments the fat man reappeared. He paused half-way down the stairway, and the light rays were reflected in his slanting eyes as he fixed them upon the secret agent.

"You will come with me, please," he said.