Cai Xiaolian also remembered what had happened back then.
At that time, when the Empress arrived in South County, grandma Xiao almost always followed her.
Grandma Xiao's medicinal herbs were basically all in Lu Zheng's house in kun city. Every time before grandma Xiao came back to make the medicine, Gu shouxin would melt the Jade bead in the middle of the night and sprinkle it in the medicinal herbs.
It could be said that other than Gu Xin, the Empress was the one who ate the most jade beads in the world.
When the Empress gave birth at forty, she did not encounter any danger. After giving birth, she did not look old. Instead, she looked even younger.
Therefore, The Little Prince had probably absorbed more than half of the Jade bead in the Empress's stomach.
After Gu Xin received the Jade bead, she had a photographic memory and learned everything quickly. So, after The Little Prince was born, she learned everything quickly too.