ill be there at four, and that I'm to be there in
ambush to murder myself. Whoever is behind all this will be there
too--to see I carry out my work properly. And that gives us our chance."

"Oh, that's good," exclaimed Walter. "We shall have him for certain."

"That's what I want you to see to," said Dunn. "I want you to have men
you can trust well hidden all round, ready to collar him. And I want you
to have all the roads leading to Ottam's Wood well watched and every one
going along them noted. You understand?"

"That's quite easy," declared Walter. "I can promise not a soul will get
into Ottam's Wood without being seen, and I'll make very sure indeed of
getting hold of any one hiding anywhere near Brook Bourne Spring. And
once we've done that--once we know who it is--"

"Yes," agreed Dunn. "We shall be all right then. That is the one thing
necessary to know--the key move to the problem--the identity of who it
is pulling the strings. He must be a clever beggar; anyhow, I mean to
see him hang for it yet."

"I daresay he's clever," agreed Walter. "He is playing for big stakes.
Anyhow, we'll have him tomorrow all right; that seems certain--at last."

"At last," agreed Dunn, with a long-drawn sigh. "Ugh! it's all been such
a nightmare. It's been pretty awful, knowing there was some one--not
able to guess who. Ever since you discovered that first attempt, ever
since we became certain there was a plot going on to clear out every one
in succession to the Chobham estates--and that was jolly plain, though
the fools of police did babble about no evidence, as if pistol bullets
come from nowhere and poisoned cups of tea--"

"Ah, I was to blame there, that was my fault," said Walter. "You see, we
had no proof about the shooting, and when I had spilt that tea, no proof
of poison either. I shall always regret that."

"A bit of bad luck," Dunn agreed. "But accidents will happen. Anyhow, it
was clear enough some one was trying to make a jolly clear sweep. It may
be a madman; it may be some one with a grudge against us; it may be, as
poor Charley thought, some one in the line of succession, who is just
clearing the way to inherit the title and estates himself. I wish I knew
what made Charley suspicious of Deede Dawson in the first place."

"You don't know that?" Walter asked.

"No, he never told me," answered Dunn. "Poor Charley, it cost him his
life. That's another thing we must find out--where they've hidden his
body."

"