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Chapter 938: Departure For the Test Excavation
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Semaphore used the positioning of two flags to convey letters, while light signals worked like Morse code, flashing patterns of light on and off to represent characters.
Both methods required a decent level of skill to transmit and interpret accurately, which often made it quicker to just have one of the winged angels fly back and forth with messages.
Flying races sure are convenient.
That idle thought drifted through my mind as the day came to a close.
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