ent as he was bidden.

'Come on, boys; you must come with me,' said the sergeant and the
little party went across the heath, the prisoner turning as the
sergeant bade him, and taking as direct a line as possible to the
Horseshoe Fort.

An hour later Dick and Chippy found themselves in the presence of the
officer in charge of the works at the fort. The prisoner had been
handed over into safe keeping, and the sergeant and the two boys had
been ordered to report to the colonel himself.

They were shown into a large bare room where a tall man was seated at a
great table covered with papers. He stood up, as they went in and
saluted, and posted himself in front of the fire.

'Well, Sergeant Lake,' he said. 'What's all this about?'

'I believe, sir, I've got a spy; at least, these boys had him. I only
helped to bring him in.' So spoke the modest sergeant.

'Ah, yes, a spy;' and the colonel nodded, as if he had been expecting a
spy for weeks, and perhaps he had. 'But this is rather an odd thing to
get hold of a spy in this fashion. Let me hear all about it.'

'I can tell you little or nothing, sir,' replied Sergeant Lake. 'I
didn't wait to hear all their story. The boys told me enough, though,
for me to bring him in.'

'Well,' said the colonel, 'suppose I have the story from one of you
boys?'

Dick and Chippy looked at each other, and the latter mumbled: 'You tell
'em. Yer can manage it a lot better 'n me. I shan't, anyhow. Goo on.'

Thus adjured by his brother scout, Dick told the whole story from the
moment he saw the startled rabbit until they had run upon the sergeant
in their headlong flight. Then Chippy handed over the boot, which
underwent the most careful examination at the hands of the colonel.
The latter spread out on the table the tiny sheets of paper from the
cavity, and studied them long and earnestly. To his trained eyes those
marks meant things which the boys had, as was only natural, failed to
grasp. He had sat down at the table to examine the papers, and Dick,
Chippy, and the sergeant were standing on the opposite side.

At last the colonel leaned back in his chair, and looked at the boys
and tapped the papers with his forefinger.

'Oh yes,' he said, 'you've nabbed a spy, and no mistake about it, my
brave lads. I feel, personally, that you've done me an immense
service, for I should have been simply wild to think that my plans were
as good as pigeon-holed in some foreign intellig