ven Caesar fought here. Do you remember the place
where he says that of all the tribes he conquered, the bravest were the
Belgians?"

"Oh, that's so! I'd forgotten that! But, Paul, you said there might
be something for us to do. What did you mean?"

"I'm not sure yet, Arthur, and I'd rather not say anything more until I
am. But I want you to slip out with me to-night, after dinner. We'll
find out then, for certain. And I don't want to tell Uncle Henri or
anyone else, and afterward find I was wrong. We'd be laughed at then,
you see."

"Then you have found something! Oh, tell me, Paul! I won't repeat it
to a soul!"

"You'll know all in good time. Do you remember that man who tried the
other day to get work as a gardener?"

"Yes, I do. Uncle Henri didn't have any work for him, but he sent him
to the factory in Seraing, and told him they would give him a job."

"That's the one. You know he said he was hungry, and that he hadn't
been able to get any work for a long time, so he didn't have any money.
Uncle Henri told the cook to give him a dinner."

"Yes, and I was sorry he didn't get a place. He looked as if he would
have been all right."

"Well, Arthur, I saw him again, last night! He was in Esneux, and he
seemed to have plenty of money, though he hadn't gone to Seraing to get
work. He was in Madame Bibet's wine shop, and he was treating
everyone. Do you know what he paid with?"

"No."

"A German gold piece! That's how I know about it, because Madame Bibet
had never seen such a coin before, and she was afraid it wasn't good.
So she came out, and when she saw me she asked me, and I told her it
was good, of course."

"Well, that's nothing, Paul. We often see German money here in Liege.
Isn't it like that in all places that are near a border? I suppose
that on the other side there is a lot of French money. Why, there is,
even in Brussels."

"It may mean nothing at all, Arthur. I hope it doesn't. But I think
it's funny that that man should be staying around so. He must have
told Uncle Henri a lie when he said he didn't have money. I'd like to
know what he's up to. I'd like to be sure that he's not a German spy."

"Oh, I never thought of that! A spy! Why should the Germans have
spies around here, though, Paul?"

"It's just the place where they would have them, Arthur. The forts!
They want to find out all they can about them. Boncelles is near us;
so is the fort of Embourg. They w