Su Yunjin shared her thoughts, and both Mrs. Shen and Su Zhongshi thought it was a good plan, to wait for the person who had been sending the gifts before his next visit.
They should be able to find out who it was then.
"Dad, Mom, how often does the person who sends the gifts come?" Su Yunjin asked. Figuring out the timing, they could wait outside and catch the person as soon as he arrived.
Sure enough, the person delivering the gifts was quite regular—about every five to six days he would come twice, and having delivered today, the man would probably come again tomorrow.
"Yunjin, I reckon the man who sends the gifts will deliver again tomorrow," Mrs. Shen said truthfully.
Su Yunjin bit into a loquat, "Then that's easy, we'll hide in a concealed spot outside from early tomorrow and wait for that person to deliver the gifts."