"At that moment their conversation was interrupted by a most barbaric sound - a great horn was being blown. A number of men rushed forward and heaved the great town gates shut. Thinking that perhaps some danger threatened the town, Stephen looked round in alarm. "Sir, what is happening?" "Oh, it is these people's custom to shut the gate every night against the wicked heathen," said the gentleman, languidly, "by which they mean everyone except themselves. But"