Here are six strange and startling stories, calculated to entrance science-fiction lovers. In these fantastic and brilliantly imaginative plots Murray Leinster has bent, turned inside-out and upside-down, accelerated, decelerated, and obliterated time in a weird, uncanny manner. From the hilarious chaos of a man's telephone feud with himself to the tender pathos of lovers reaching across the chasm of death ... from the hair-raising discovery of a buried city to the chill horror of the end of time ... these tales will thrill and delight imaginative people. * * * * * BEYOND _by Theodore Sturgeon T439 35¢_ Pass through the strange, shining curtain of the mind that conceals the eeriest of all telepathies. With this series of stories, master science-fiction writer Sturgeon takes the reader into dark worlds where man is merely another molecule, where centuries whirl by and civilizations shudder to a stop, where intelligent worms rule. Thrilling, extraordinary, and totally engrossing, these stories are tops in science-fiction. * * * * * Both of these fine Avon science-fiction books are available at your local newsdealer. If he cannot supply you, order direct from Avon Book Division--The Hearst Corporation, 250 West 55th Street, New York 19, N. Y. Enclose price listed, plus 10¢ extra per copy to cover cost of wrapping and mailing. * * * * * The first sounds came at midnight a plaintive keening from an unknown voice in the vastness of uncharted space. Within hours the whole world had heard the strange, unearthly music--and the panic had begun. Were the sounds a plea for help? From whom? From where? Or were they a command too terrible to think about? No one knew. And in billions of earth-bound minds the horror grew.... For how could man, who had not yet claimed the moon, defy a challenge from the stars? And hours later, to the ears of a helpless world, the second message came.... And Earth's days were numbered! A terrifying tale of tomorrow--or maybe tonight--by the undisputed master, Mr. Science-Fiction himself! * * * * * Other Avon books by: MURRAY LEINSTER: The Planet Explorer Monsters and Such Twists in Time End of the Project Gutenberg EBook of The Wailing Asteroid, by Murray Leinster