The lookout post deployed on the seashore immediately lit up wolf smoke as soon as the shadow of the ship was spotted. The highest level, three piles of wolf smoke that had already been piled up, were all ignited.

Beacon communication was the fastest way to communicate in ancient times.

When the next sentry saw the wolf smoke on the seashore, it immediately lit the highest level of wolf smoke, right on the hill, so that people from far away could see it.

And Xiangshan County, that is, a county, is not too big. Communicated with a beacon

"Early Ming Dynasty: Saved a Princess at the Beginning" 158 Pain, pain, pain, you want my life I'm hitting my hand, please wait a moment,

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