exulting ring in his voice. "There is much to do and much danger to be
faced, but we are on the right track at last. But why did you send me
that note just now?"

David smiled as he lighted a cigarette.

"It is part of the scheme," he said. "Part of my scheme, you understand.
But, principally, I sent you the note because Miss Enid asked me to."




CHAPTER XVI

MARGARET SEES A GHOST


With a sigh of unutterable relief Enid heard Williams returning. Reginald
Henson had not come down yet, and the rest of the servants had retired
some time. Williams came up with a request as to whether he could do
anything more before he went to bed.

"Just one thing," said Enid. "The good dogs have done their work well
to-night, but they have not quite finished. Find Rollo for me, and bring
him here quick. Then you can shut up the house, and I will see that Mr.
Henson is made comfortable after his fright."

The big dog came presently and followed Enid timidly upstairs. Apparently
the great black-muzzled brute had been there before, as evidently he knew
he was doing wrong. He crawled along the corridor till he came to the