Heinlein rapidly became a fan favorite. Asimov praised “Life-Line” in a letter to the magazine, and he also wrote Heinlein directly. Pohl, who had talked his way into editing the pulps Astonishing and Super Science Stories at the age of nineteen, bought “Let There Be Light,” a gadget story that Heinlein published as Lyle Monroe. He was saving his real name for Campbell, to whom he sent the ambitious “Lost Legacy,” which was inspired by an item that the editor had written in Unknown about the apparently unused structures of the brain.
