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The Death Dealers is a mystery novel by Isaac Asimov published in 1958. It is about a university professor whose research student dies while conducting an experiment. The professor attempts to determine if the death was accident, suicide or murder.

The Currents of Space is a science fiction novel by the American writer Isaac Asimov. It is the second of three books labeled the Galactic Empire series, though it was the last of the three he wrote. Each occurs after humans have settled many worlds in the galaxy — after the second wave of colonization that went …