2AZK saves the day! Back in 1923, a long-distance telephone call took hours to place, and overseas calls weren't possible at all. But a new invention, called wireless radio, permitted instant communication over long distances. A young boy, itching to get involved, buys a secondhand receiver and earphones, and studies hard to learn Morse code so that he can pass the test to qualify as an amateur radio operator and get his own 2AZK. Its fun talking with people all over the world just by tapping on his telegraph key (and readers can tap along - there's Morse code to follow in the pictures). Then one night he picks up a distress signal from Florida—family stranded in flood—and uses his skill for something more important. Based on the author's father's experiences as a young ham operator in the 1920s, Radio Rescue is an exciting story of a moment in technological history.