"Come on, Arthur," he said. "We'd better be getting along home. There may be something for us to do."
"All right," agreed Arthur, cheerfully. He was a little younger than his chum, and was nearly always willing to agree to anything Paul proposed.
The two boys were not natives of Liege. However, they spent their summers with relatives who lived in the country a few miles beyond the limits of the famous old town, in the direction of the village of Esneux. They themselves came from Brussels, and, while not themselves related, were both cousins of the family which they were now visiting, that of M. de Frenard.
So now, striking out with a good, swinging pace, they made their way rapidly through the streets of the old town of Liege, narrow and crooked, once they were beyond the great square. They passed over the new Exposition Bridge and so to the new town of Liege, where the great steel works of Seraing were beginning to cast red reflections against the darkening sky.
"They have begun to work all night long," said Arthur.
"It's a good thing, too," said Paul, soberly. "If there is to be a war, as Mr. Van Verde says, we may need all the guns they can turn out."
"But we shall not go to war, Paul! Belgium is neutral. All the powers joined in declaring Belgium to be a neutral state. We have learned that in our history in school!"
"I know that, Arthur. But will the Germans respect our neutrality? If they don't, we shall have to defend ourselves against them. And the first attack will be here, at Liege."
"Then these forts that Uncle Henri showed us will really be useful? They are strong forts, Paul."
"I hope not. But just because there are forts there it is a sign that the government has feared an invasion, Arthur. I hope that if there is war we shall stay out of it. But Belgium has always been exposed to war when her great neighbors fought. Some of the greatest battles in the history of the world have been fought on our soil."