Murray Leinster 1 hr 1 min read

In 1972, a television ham in Osceola, Florida picks up ten minutes of impossible interference that blows out his receiver, the first of many broadcasts that come from nowhere and no when.

Murray Leinster's 1957 story is a clever hard-SF and military-SF tale of mysterious transmissions. Sharp, inventive golden-age SF. Read it for a story where eerie broadcasts from an unknown source baffle the authorities, and the secret behind them proves to be a machine, and a menace, from another reality.

In its time

Published in 1957, during the 1950s, post-war optimism meets cold war anxiety.

Reading it

1 hr 1 min read (a novelette, room for a turn or two).