Indeed, Lu Tingchen already knew everything.
Minister Lin had told them about the situation in the imperial capital the moment he arrived at the frontier.
When they learned that Weiwei had been kidnapped to the Yan Kingdom by Long Chi not long after going through a difficult labor, they wanted nothing but to leave everything behind and search for her.
They only managed to restrain themselves when Minister Lin told them that the Emperor had personally gone to the Yan Kingdom.
Grandmother had hidden the news about Weiwei from them for fear that it would affect their work at the frontier.
At that time, they only knew that Weiwei had given birth to three children but not about what happened to Ji'er after she was born.
He had never expected so much to happen while he and his parents were away from the imperial capital, and what was worse was that the incidents only got more distressing one after another.