The Tower of the Elephant
Uncertainly Conan approached, and Yag-kosha, or Yogah, as if sensing his uncertainty, indicated where he should strike. Conan set his teeth and drove the sword deep. Blood streamed over the blade and his hand, and the monster started convulsively, then lay back quite still. Sure that life had fled, at least life as he understood it, Conan set to work on his grisly task and quickly brought forth something that he felt must be the strange being’s heart, though it differed curiously from any he had ever seen. Holding the still pulsing organ over the blazing jewel, he pressed it with both hands, and a rain of blood fell on the stone. To his surprise, it did not run off, but soaked into the gem, as water is absorbed by a sponge.
Holding the jewel gingerly, he went out of the fantastic chamber and came upon the silver steps. He did not look back; he instinctively felt that some sort of transmutation was taking place in the body on the marble couch, and he further felt that it was of a sort not to be witnessed by human eyes.
He closed the ivory door behind him and without hesitation descended the silver steps…