If you ask how Mr. Gu found out, it was because Manager Liu at Huichun Hall in the county told Fourth. Fourth often went to Huichun Hall to buy medicinal materials, and Manager Liu's wife's nephew was studying at the private school with the second son. In truth, there's no wall in the world that doesn't let air through.
After learning the news, Mr. Gu quickly took a carriage to the private school and called the second son out, berating him harshly and asking how much benefit he had accepted from others. At first, the second son didn't want to say.
Mr. Gu dragged the second son to the house he bought in the county. Inside, they found over two thousand taels of silver and some expensive jewelry and ornaments, which enraged Mr. Gu.
