There are dwarves in the mountains

Henry sat in the castle's library with a thick old book in his hands. From time to time, his eyes left the book and looked out the window at the plaza, where he could see hundreds of villagers carrying bags of potatoes, piling them up near the castle. The soldiers were also helping under Henry's orders, trying to speed up everything they needed to march again. 

A knock on the door interrupted Henry's attention. Olaro entered, his hands dirty with soil - "My liege, the farmers have finished gathering the potatoes, and we are finishing transporting them to the plaza" - he reported. 

Henry closed the book and returned it to the bookshelf -"How long until everything is finished?"