this particular
print to!" said Chettle eagerly. "Of course, it's a big field. So far as
I understand things, he'd been knocking round a good bit between the time
of your taking this photo and his death. He'd been in London, hadn't he?
And in Russia--in two or three places. How can we find out when and how
he parted with this? For give it to somebody he did, and that somebody
was a person who knew of the jewel transaction, and employed Lydenberg in
it, and sent the photo to Lydenberg so that he should know your cousin by
sight--at once. Mr. Allerdyke, the secret of these murders and thefts
is--there!"

Chettle replaced the watch in the cardboard box from which he had taken
it, produced a bit of sealing-wax from his pocket, sealed up the box, and
put it and the other things belonging to Lydenberg back in the small
trunk from which he had withdrawn them to show his companion. And
Allerdyke watched him in silence, wondering and speculating about this
new development.

"What do you want me to do?" he asked suddenly. "You've got some scheme,
of course, or you wouldn't have got me down here alone."

"Just so," agreed Chettle. "I have a scheme--and that's why I did get you
down here alone. Mr. Allerdyke, you're a sharp, shrewd man--all you
Yorkshiremen are!--at least, all that I've ever come across. You're good
hands at ferreting things out. Now, Mr. Allerdyke, let's be
plain--there's no two ways about it, no doubt whatever of it, the only
people in England that we're aware of who knew about this Nastirsevitch
jewel transaction are--Fullaway and whoever he has in his employ! We
know of nobody else--unless, indeed, it's the Chicago millionaire,
Delkin, and he's not very likely to have wanted to go in for a job of
this sort. No, sir--Fullaway is the suspected person, in my
opinion!--though I'm going to take precious good care to keep that
opinion to myself yet awhile, I can tell you. Fullaway, Mr. Allerdyke,
Fullaway!"

"Well?" demanded Allerdyke. "And so--"

"And so I want you to use your utmost ingenuity to find out if your
cousin James gave that photo to Fullaway," continued Chettle. "We know
very well that he was in touch with Fullaway before he went off to
Russia--I have it in my notes that when Fullaway came to see you here in
Hull, at the Station Hotel, the day of your cousin's death, he told you
that he and Mr. James Allerdyke had been doing business for a couple of
years, and that they'd last met in London about