paratively new and extremely powerful, cunningly disguised into an appearance of rusty antiquity. Not half a dozen men in the kingdom had ever known the secret of that tower.
No keyhole showed in the massive, green-crusted lock. But Conan's practised fingers, stealing over it, pressed here and there knobs invisible to the casual eye. The door silently opened inward and he entered solid blackness, pushing the door shut behind him. A light would have showed the tower empty, a bare, cylindrical shaft of massive stone.
Groping in a comer with the sureness of familiarity, he found the projections for which he was feeling on a slab of the stone that composed the floor. Quickly he lifted it, and without hesitation lowered himself into the aperture beneath. His feet felt stone steps leading downward into what he knew was a narrow tunnel that ran straight toward the foundations of the Iron Tower, three streets away.
The bell on the citadel, which tolled only at the midnight hour or for the death of a king, boomed suddenly. In a dimly lighted chamber in the Iron Tower a door opened and a form emerged into a corridor. The interior of the Tower was as forbidding as its external appearance. Its massive stone walls were rough, unadorned. The flags of the floor were worn deep by generations of faltering feet, and the vault of the ceiling was gloomy in the dim light of torches set in niches.
The man who trudged down that grim corridor was in appearance in keeping with his surroundings. He was a tall, powerfully-built man, clad in close-fitting black silk. Over his head was drawn a blade hood which fell about his shoulders, having two holes for his eyes. From his shoulders hung a loose blade cloak, and over one shoulder he bore a heavy ax, the shape of which was that of neither tool nor weapon.
As he went down the corridor, a figure came hobbling up it, a bent, surly old man, stooping under the weight of his pike and a lantern he bore in one hand.
"You are not as prompt as your predecessor, master headsman," he grumbled. "Midnight has just struck, and masked men have gone to milady's cell. They await you."
"The tones of the bell still echo among the towers," answered the executioner. "If I am not so quick to leap and run at the beck of Aquilonians as was the dog who held this office before me, they shall find my arm no less ready. Get you to your duties, old watchman, and leave me to mine. I think mine is the sweeter trade, by Mitra, for you tramp cold corridors and peer at rusty dungeon doors, while I lop off the fairest head in Tarantia this night."
The watchman limped on down the corridor, still grumbling, and the headsman resumed his leisurely way. A few strides carried him around a turn in the corridor, and he absently noted that at his left a door stood partly open. If he had thought, he would have known that that door had been opened since the watchman passed; but thinking was not his trade. He was passing the unlocked door before he realized that aught was amiss, and then it was too late.
A soft tigerish step and the rustle of a cloak warned him, but before he could turn, a heavy arm hooked about his throat from behind, crushing the cry before it could reach his lips. In the brief instant that was allowed him he realized with a surge of panic the strength of his attacker, against which his own brawny thews were helpless. He sensed without seeing the poised dagger
"Nemedian dog!" muttered a voice
