"There have been lots of remarkable surprises sprung in this war already," Merritt observed thoughtfully, "but I'm thinking the worst is yet to come. There never was such a war before in the history of the world, and it's to be hoped this one ends in a peace that will last forever."

"Yes," added Rob, greatly impressed by what he was seeing, "war's going to cost so much after this that the nations will have to fix up some other way to settle their differences. About that Zeppelin, Tubby; don't you see how they might be able to drop a few bombs on the enemy's trenches; or where the Belgians have fixed barbed-wire entanglements to stop the rush of the charging German troops? Just to think that here we are really watching a battle that isn't like one of the sham rights they have every summer at home. It's hard to believe, boys!"

They were all agreed as to this, and every little while one of them might be detected actually rubbing his eyes, as though suspecting he were asleep and all this were but a feverish dream.

The cannonading grew more and more furious as the morning advanced. Huge billows of smoke covered sections of the country, some of it not more than a mile away from the village where Rob and his chums had stopped.

"And just to think," said Tubby, with a touch of sorrow in his voice. "While all this sounds like a Fourth of July celebration to us, safe as we are, it spells lots of terrible wounds for the poor fellows who are in the fight. Why, with all those big shells bursting, and the shrapnel too, that you spoke about, Rob, right now I reckon there are just hundreds of them wanting to be attended to."

"That's true enough, Tubby, the more the pity," replied Rob.

"What's this coming up behind us?" called out Merritt, as loud cheers, together with the rattle of wheels and the pounding of many horses' hoofs, were heard on the road they had used on the previous night.

"Oh! they're going to bombard the village; and now we'll get it!" gasped Tubby.

"It looks like a battery coming from the direction of Antwerp, and hurrying to get in action!" Rob ventured to say, as he discovered that those who were seated on the horses and on the gun caissons wore the Belgian uniforms.

"Just what it is, Rob," added Merritt excitedly. "They hear the sound of the guns ahead, and are crazy to get there. Look at them whip the horses, would you! And how the animals run! They smell the smoke of burnt powder, and it's fairly set them all wild!"