These Asian merchants are traveling to Europe to trade Chinese goods. They have brought the plague to Europe through their little friend, the rat.
The Asian merchants are unloading the boxes from their boat. As they are unloading their little friend, the rat, is trying to get into the neighbors house.
These commoners have just been infested with the plague. Since the rat has come into their hose most likely they are going to end up with the plague.
Now what is happening is that our one plague rat is meeting other rats and giving them the plague fleas. Now we have about 15 rats that can give people the plague.
Now one of the plague rats is getting into a persons bed. She is not alarmed because she is used to rats coming in at night. She is also one of the first victims of the plague. She has no idea that in the mornig she might be dead.
Now we see the streets piled with dead bodies. We have lots of peasants, surfs, and I think I see one of the lords daughters. That's crazy this plague is out of control. More than half of the population is gone!!