Osceola drew up a chair and sat down. Fascinated, he watched Bill’s left hand pressing the sending key, calling—calling—calling. The young Seminole’s education had been academic, not scientific, and his knowledge of radio was only rudimentary. Although the International Morse Code of dash-dot letters was as much of a mystery to him as it is to the average layman, he soon realized that his friend was sending out the same short message over and over again.