Annister had been absent from that room not longer than ten racing seconds. It was unthinkable that the girl had vanished of her own volition, even had it been physically possible.

Glancing around the room, he saw that the windows were closed and bolted; the flooring was solid, substantial; there could be no ingress save by the door through which he had just come.

There was another door; it led to the next room; but Annister, with a habit of inbred caution, had tried it, and found it locked. Now, in two swift strides, he had covered the space between, had tried that door, setting his weight against it as he turned the knob.

Under his weight it gave outward with a sudden slatting clatter. They, whoever they might be, had unlocked it; it had been through this adjoining room that they had taken the girl.

Annister, glancing swiftly around this room, saw that it was obviously unoccupied; the bed had been made up; there was no sort of clue that he could see. The invisible assassin had had a key; that was it, of course.

But as to the rest of it, Annister could only speculate. It was an impasse, and a mystery.

Going downward to the dining-room, as it was now past noon, he glanced toward the desk, but if he had had any thought of reporting the attack upon the girl, or her disappearance, he thought better of it; he would keep his own counsel; a decision helped by a sight of Lunn, the hotel proprietor, who, lounging at the desk, raised his sleepy-lidded, vulture gaze at Annister as the latter was turning toward the dining-room.

Annister, in that brief glance, thought to detect in those eyes, milky-pale, a veiled, sardonic flicker. If, behind this latest happening, there was the fine, Italian hand of Hamilton Rook, Lunn was in cahoots with the lawyer, of that there could be little doubt. For, as Annister was convinced, there had been a menace in those eyes half turned to his, an insolence, a bright, burning truculence, that, as he turned into the long dining-hall, brought the swift blood to his cheek in a dark tide.

But at his table another surprise awaited him. Mary Allerton was gone. The heavy-handed Swede who served him told him that she had left, suddenly, that morning; a message had come for her, it appeared, but the substitute could tell him nothing further. Annister let it go at that.

Rising from the table, he went outward to the long bar, a cool, pleasant oasis, indeed, in the fierce heat of the drowsy afternoon. He greeted the bartender, a tall man with the wide shoulders of a cowman, with a smile.