Nevertheless, towards the end of January it became obvious that it would be necessary to procure some more grain from somewhere. In these days Napoleon rarely appeared in public, but spent all his time in the farmhouse, which was guarded at each door by fierce-looking dogs. When he did emerge, it was in a ceremonial manner, with an escort of six dogs who closely surrounded him and growled if anyone came too near. Frequently he did not even appear on Sunday mornings, but issued his orders through one of the other pigs, usually Squealer. How does the characterization of Napoleon reveal the author’s purpose?