renewed energy. So far
as the worthy Inspector could see, Mr. Jacobs was doing absolutely
nothing, save eat his meals, smoke his cigar, and stroll about the
grounds and admire the scenery. Therefore, the Inspector enjoined his
men to keep a careful watch; and he himself, when not in Mr. Jacobs'
company, patrolled the woods and, following the clue Lord Heyton had
offered him, had visited the gipsy encampment and examined the members
of the tribe. He came upon nothing to rouse his suspicions of them;
indeed, he hit upon no clue whatever; but he still kept up a kind of
patrol and scrutinised every person who approached the Hall.

If Mr. Jacobs was aware of the Inspector's renewed vigilance, he made no
remark; and whenever they were together, and the Inspector wanted to
talk of the case, Mr. Jacobs politely and quite inoffensively--in fact,
he always listened most respectfully--led the conversation away from the
subject. Once or twice, the Inspector was absolutely on the point of
asking the famous detective why on earth he was lingering at the Hall;
but his courage always failed him; for, notwithstanding the detective's
boyish face and innocent-looking eyes, there was something about him
which inspired a kind of respect in Inspector Brown.

After that momentary glimpse of intelligence, and his interview with his
son, the Marquess had relapsed into unconsciousness; but the doctor, in
answer to Celia's anxious inquiries, had told her that there was a
chance, just a chance, of life.

As the great house settled into its nightly silence, Derrick's train was
speeding on its way. He had got through Donna Elvira's business
satisfactorily, and, moreover, following Reggie's instructions, obtained
his special licence; therefore, his heart was light as he sat and smoked
while the express tore through the silence of the night. He reached
Thexford at ten o'clock in the morning, and went straight to the inn.
Reggie, he was told, was out; and Derrick made a good breakfast and,
naturally enough, was drawn towards the wood. It was a hundred to one
chance that Celia should be there; but he decided to take the odds. The
morning was hot; it was not at all unlikely that, puzzled and perhaps
alarmed by his absence, she might go to the wood. On his way, it was
also natural that he should recall his sight of Heyton on the preceding
morning; and, having recalled that, it was also a corollary that he
should remember Heyton's mysterious proceedings