Although it had been years since either Hal or Chester had been in
Berlin, Hal's sense of direction now stood him in good stead. He
remembered where the Hotel Bismarck stood as well as though he had been
there yesterday.

At the hotel the three registered under their assumed names, and paid a
month in advance for a small suite of two rooms.

"We expect to study the internal situation of the city for some time,"
Hal explained to the clerk, "and we want to feel sure that we shall
have a place to stay while we are here."

The three made themselves comfortable in their apartments, and for some
time talked quietly. At last Hal gave the word for bed.

"We don't know just how we shall proceed," he said, "but we must be
fresh and ready for any eventuality in the morning."

Morning came and with it the three friends were astir. They had an
early breakfast, and then Hal announced that he would fare forth
alone.

"I'll tell you where I'm going," he said, "so that if anything happens
to me you will go ahead with the work, regardless. Remember this.
Even though I may get in trouble, your duty will be to get the list,
irrespective of what my fate may be. America comes first, you know,
Chester."

"Of course," was the latter's quiet reply.