Then there was only blackness in the hole that went up to the surface. Blackness in the hole, calm night on the desert above--and silence, as if the cavern were brooding on the puny figures and strange machines that had for the first time dared invade its solitude, in the realms four miles within the earth.... The Lake of Light _By Jack Williamson_ [Illustration: _The monster emanated power, sinister, malevolent power._] [Sidenote: In the frozen wastes at the bottom of the world two explorers find a strange pool of white fire--and have a strange adventure.] The roar of the motor rang loud in the frosty air above a desert of ice. The sky above us was a deep purple-blue; the red sun hung like a crimson eye low in the north. Three thousand feet below, through a hazy blue mist of wind-whipped, frozen vapor, was the rugged wilderness of black ice-peaks and blizzard-carved hummocks of snow--a grim, undulating waste, black and yellow, splotched with crystal white. The icy wind howled dismally through the struts. We were flying above the weird ice-mountains of the Enderby quadrant of Antarctica. That was a perilous flight, across the blizzard-whipped bottom of the world. In all the years of polar exploration by air, since Byrd's memorable flights, this area had never been crossed. The intrepid Britisher, Major Meriden, with the daring American aviatrix whom the world had known as Mildred Cross before she married him, had flown into it nineteen years before--and like many others they had never returned. Faintly, above the purring drone of the motor, I heard Ray Summers' shout. I drew my gaze from the desolate plateau of ice below and leaned forward. His lean, fur-hooded face was turned back toward me. A mittened hand was pointing, and thin lips moved in words that I did not hear above the roar of the engine and the scream of the wind. I turned and looked out to the right, past the shimmering silver disk of the propeller. Under the blue haze of ice-crystals in the air, the ice lay away in a vast undulating plain of black and yellow, broken with splotches of prismatic whiteness, lying away in frozen desolation to the rim of the cold violet sky. Rising against that sky I saw a curious thing. It was a mountain of fire! Beyond the desert of ice, a great conical peak pointed straight into the amethystine gloom of the polar heavens. It was brilliantly white, a finger of milky fire, a sharp cone of pure light. It shone with white radiance. It was brighter, far brighter, than is the sacred cone of Fujiyama in the vivid day of Japan. * * * * *