ctured pretty accurately what the place would
look like at night. He remembered, for instance, that certain stars would
be sure to be in the sky in a particular relation to the cache. And now he
looked up and worked out his own position. To do that he had to
reconstruct, with the utmost care, his movements since he had left the
cache. Up to the moment when he and Harry had entered Bray Park that was
easy.

But the chase had confused him, naturally. He had doubled on his track more
than once, trying to throw his pursuers off. But by remembering accurately
the position of Bray Park in its relation to the cache, and by
concentrating as earnestly as he could, to remember as much as possible of
the course of his flight, he arrived presently at a decision of how he must
proceed to retrieve the motorcycles and the papers.

As soon as he had done so he hurried on, feverishly, taking a course that,
while longer than necessary, was essential since he dared not go near Bray
Park. He realized thoroughly how much depended on his promptness. It was
essential that Colonel Throckmorton should learn of the wireless station,
which was undoubtedly powerful enough to send its waves far out to sea,
even if not to the German coast itself.

And there was Harry. The only chance of rescue for him lay in what Dick
might do. That thought urged him on even more than the necessity of
imparting what they had learned.

So, scouting as he went, lest he encounter some prowling party from Bray
Park silently looking for him, he went on hastily. He was almost as anxious
to avoid the village as the spy headquarters, for he knew that in such
places strangers might be regarded with suspicion even in times of peace.
And, while the war fever had not seemed to be in evidence in the afternoon,
he knew that it might have broken out virulently in the interval. He had
heard the stories of spy baiting in other parts of the country; how, in
some localities, scores of absolutely innocent tourists had been arrested
and searched. So he felt he must avoid his friends as well as his enemies
until he had means of proving his identity.

Delaying as he was by his roundabout course, it took him nearly an hour to
come to scenes that were familiar. But then he knew that he had found
himself, with the aid of the stars. Familiar places that he had marked when
they made the cache appeared, and soon he reached it. But it was empty;
motorcycles and papers--all were gone!