ed. I heard her unlock her bedroom
door before she entered--an odd thing to do. Tom came sleepily stumbling
to his room later. I put my head out. "Where is Lord Carwitchet?"

"Haven't you seen him? He left us hours ago. Not come home, eh? Well,
he's welcome to stay away. I don't want to see more of him." Tom's brow
was dark and his voice surly. "I gave him to understand as much."
Whatever had happened, Tom was evidently too disgusted to explain just
then.

I went back to my fire unaccountably relieved, and brewed myself another
and a stronger brew. It warmed me this time, but excited me foolishly.
There must be some way out of the difficulty. I felt now as if I could
almost see it if I gave my mind to it. Why--suppose--there might be no
difficulty after all! The bishop was a nervous old gentleman. He might
have been mistaken all through, Bogaerts might have been mistaken, I
might--no. I could not have been mistaken--or I thought not. I fidgeted
and fumed and argued with myself till I found I should have no peace of
mind without a look at the stone in my possession, and I actually went
to the safe and took the case out.

The sapphire certainly looked different by lamplight. I sat and stared,
and all but overpersuaded my better judgment into giving it a verdict.
Bogaerts's mark--I suddenly remembered it. I took my magnifier and held
the pendant to the light. There, scratched upon the stone, was the Greek
Beta! There came a tap on my door, and before I could answer, the handle
turned softly and Lord Carwitchet stood before me. I whipped the case
into my dressing-gown pocket and stared at him. He was not pleasant to
look at, especially at that time of night. He had a dishevelled,
desperate air, his voice was hoarse, his red-rimmed eyes wild.

"I beg your pardon," he began civilly enough. "I saw your light burning,
and thought, as we go by the early train to-morrow, you might allow me
to consult you now on a little business of my mother's." His eyes roved
about the room. Was he trying to find the whereabouts of my safe? "You
know a lot about precious stones, don't you?"

"So my friends are kind enough to say. Won't you sit down? I have
unluckily little chance of indulging the taste on my own account," was
my cautious reply.

"But you've written a book about them, and know them when you see them,
don't you? Now my mother has given me something, and would like you to
give a guess at its value. Perhaps you can put me in t