His heart was beating with painful rapidity and his breath came laboriously. He was terror-stricken. He turned to find the door through which he had come, and to his surprise he could not see it. So far as he could detect, the stone wall ran without a break from one end of the apartment to the other. Escape could not lie that way; of that he was satisfied. There was nothing to do but to wait, with whatever patience he could summon, to discover their plans. He did not doubt that he was to suffer. He had forfeited all right to their confidence, but if this was to be the only consequence of his ill-doing he was not greatly worried. Count Poltavo, as he had boasted before in this identical room, had been in some tight corners and had faced death in many strange and terrible guises, but the inevitability of doom was never so impressed upon his mind as it was at this moment when he lay guarded by a hundred secret forces in the tomb of the Secret House.
He had one hope, a faint one, that T. B. would discover the method of his exit from the room in Moor Cottage and would track him here.
Evidently the occupants of the Secret House had the same fear, for even here, in the quietness of his underground prison, Poltavo could hear strange whining noises, rumbling, and groaning and grinding, as though the whole of the house were changing its construction.
He had not long to wait for news. A corner lift came swiftly down and Fall stepped briskly towards his prisoner.
"T. B. Smith is in the house," he said, "and is making an inspection; he will be down here in a moment. In these circumstances I shall have to betray one of the secrets of this house." He caught the other roughly by the arm and half led, half dragged, him to a corner of the room. Handcuffed as he was, Poltavo could offer no resistance. Dr. Fall apparently only touched one portion of the wall, but he must have moved, either with his foot or with his hand, some particularly powerful spring, for a section of the stone wall swung backwards revealing a black gap.
"Get in there," said Fall, and pushed him into the darkness.
A few moments later T. B. Smith, accompanied by three detectives, inspected the room which Poltavo had left. There was no sign of the man, no evidence of his having so recently been an occupant of his prison house. For an interminable time Poltavo stood in the darkness. He found he was in a small cell-like apartment with apparently no outlet save that through which he had come.
He was able to breathe without difficulty, for the perfect system of ventilation throughout the dungeons of the Secret House had been its architect's greatest triumph.
It seemed hours that he waited there, though in reality it was less than twenty minutes after his entrance that the door swung open again and he was called out.
Farrington was in the room now, Farrington with his trusty lieutenant, and behind them the one-eyed Italian desperado whom Poltavo remembered seeing in the power house one day, when he had been allowed the privilege of inspection.