CHAPTER VI.
GETTING NEAR THE WAR ZONE.
"Hold on to your horses, everybody!" called out Merritt, as he looked back toward the bridge from which they had now managed to press quite a little distance.
Merritt somehow did not seem to be very much astonished at what Rob had said. It might be he himself had entertained suspicions along those same lines.
They had heard that the determined Belgians were engaged in throwing all the obstacles possible in the way of an advance in force on the part of the invaders. If only cavalry were to be dealt with, the defenders of the soil had faith in their ability to take care of all that could be sent against them; but it was known to be a fact that the artillery arm was what the Germans meant to depend on more than anything else in this war for conquest.
If bridges and culverts were destroyed in every direction before the enemy could take possession of the roads, it would be next to impossible to move the great siege guns until some sort of strong temporary structure had been built in place of the stone and steel fabrics that were blown up.
And so, for days, there had been reports drifting in to Antwerp that certain bridges had been marked for destruction. Those who sallied forth in armored cars to speed over the country, and play havoc with their Maxim guns, found it necessary to revise their map of the district every night so as to conform to the new changes that had been wrought.
It was hardly ten seconds after Merritt told them to keep a firm grip on the bridles of their horses that the boys on looking back saw the bridge suddenly rear itself in the air. Then came a terrifying boom that made the very ground under their feet quiver; and, in a moment later, in place of the fine bridge lay a horrible gap, from which smoke and dust was arising in sickening clouds.