Well, it's just a matter of seeing through things without pointing them out. Let Lady Lin's family dig if they want to dig—the rich water shouldn't flow into a stranger's field, after all!
It wasn't just Wang Yongzhu who noticed at the dinner table; it's likely Wang Laozhu and Old Granny Zhang had their suspicions as well.
It's just that everyone has their selfish side; it's better to have the family bring home the mountain yam than to let outsiders take advantage of it.
Old Granny Zhang kept silent, busy working out in her head if they could sell the dug-up yams at the market. She wondered if they might fetch enough to buy some fabric for her daughter and some nice needles and threads, among other things.
It would be useful for when her daughter learned embroidery in the future.
