The animals on Animal Farm had the idea to build the windmill because they needed the energy for the stalls. They went through a lot of trouble through the process of building the windmill. One of the problems was that the animals could not at first sole how to break up the stone into pieces of suitable size. Frequently it took a whole day of exhausting effort to drag a single boulder to the top of the quarry, and sometimes when it was pushed over the edge it failed to break. In November there were raging south-west winds. Building had to stop because it was now too wet to mix the cement. Finally there came a night when the gale was so violent that the farm buildings rocked on their foundations and several dies were blown off the roof of the barn. An elm tree crashed down on the windmill. The animals, influenced by Napoleon, believed that Snowball was the cause and put a death sentence upon him. Emboldened by the collapse of the windmill, the human beings were inventing fresh lies about Animal Farm. Nevertheless, towards the end of January it became obvious that it would be necessary to procure some grain from somewhere. Napoleon had accepted, through Wymper, a contract for four hundred eggs a week. The price of these would pay for enough grain and meal to keep the farm going till summer came on and conditions were easier. All this while no more had been seen of snowball.