Now his straining eyes perceived a tiny bit of light, and simultaneously he became conscious of a deathly stench. The damp earth padding his footsteps, he advanced swiftly toward the source of light, which now seemed to lie in stripes across his line of vision. He soon saw that the stairs gave upon a small boarded-off section of the cellar proper, and light was seeping between the boards. Ah, and here was a rickety door, fortuitously equipped with a large knot-hole. O'Hara applied an eye to this--and what he saw nearly ruined even his cast iron nerve. * * * * * The Professor was working beside a heavy wooden cask, from which issued the horrible stench. From time to time a sodden thud told that he was hacking something to pieces with an ax. Now and then he would strain mightily at a dark and bulky thing which lay on the floor, a thing that required considerable strength to lift. It seemed to be getting lighter after each spasm of frenzied chopping. For a second Kell's shadow wavered away from the thing, and the enervated newspaper man saw it plainly. His senses almost left him as he realized that he was witnessing the dismemberment of a human body. As he hacked the fragments of tissue from the torso the fiend carefully deposited each in the huge cask. At such times a faint boiling sound was heard, and there arose an effluvium that bade fair to overcome even the monster engaged in the foul work. At last the limbs and head had been entirely removed. The Professor evidently decided that the trunk should be left whole, and he put his entire strength into the job of getting it into the cask. It was almost more than he could negotiate, but finally a dull splash told that he had succeeded. At this moment Jimmie O'Hara came out of his trance. The horrible proceeding had left him faint and shaken, and he wished heartily that he could leave the disgusting place as fast as his legs could carry him. But there was still work to be done and he resolved to get it over. The lantern! First he must put that out of commission. The maniac would then be at his mercy. Slowly, steadily he stole through the doorway, his eyes glued to the Professor's back. Now he was within a yard of the lantern, and he drew back his foot for the kick. Next moment Jimmie found himself gazing into the glaring eyes of his intended victim. Instinctively he struck out with the clubbed automatic, but the blow must have fallen short, or else the Professor had developed an uncanny agility. Now to his horror he saw the flashing blade of the bloodstained ax raised on high. He had no time to dodge the blow. He pressed the trigger of the Colt from the position in which he held it. * * * * *