The narrator tells us that his great-grandfather sent him a box of dried mooncakes. The mooncakes were made by monks at Dongyang temple, who absorbed the scent of different incenses. They were set out on the mountain for a period of forty-nine days, and the mooncakes "infused" with the essence of heaven and earth. That's awesome, says the narrator. He wants to try them, but he's worried that they're already expired. The narrator wants to wait for the mid-autumn festival, but his grandfather insists that they only eat mooncakes on the day of the festival. He tells the narrator to be attentive at home and to be good at work. He's off to find the key to open the box. He and the narrator have been searching everywhere for the key, but they can't figure out where to find it. They've been searching all night, and they still don't know where the key is. They finally find it in the middle of the night, but it's too late.