ery big town," remarked Fullaway. "I reckon to run
her down--if she's still there--within a couple of hours. It's our first
duty, anyway. If she--as I guess she did--saw those jewels, then we know
that James Allerdyke had them on him when he reached Hull, dead sure."

"And supposing she can tell that?" said Allerdyke. "What then? How does
that help? The devils who got 'em have already had thirty-six hours'
start of us!"

The American produced a bulky cigar-case, found a green cigar, and
lighted it with a deliberation which was in marked contrast to his usual
nervous movements.

"Seems to me," he said presently, "seems very much to me that this has
been a great thing! I figure it out like this--somehow, somebody has got
to know of what the Princess and your cousin were up to--that he was
going to carry those valuable jewels with him to England. He must have
been tracked all the way, unless--does any unless strike you, now?"

"Not at the moment," replied Allerdyke. "So unless what?"

"Unless the thieves--and murderers--were waiting there in Hull for his
arrival," said Fullaway quietly. "That's possible!"

"Strikes me a good many possibilities are knocking around," remarked
Allerdyke, with more than his usual dryness. "As for me, I'll want to
know a lot about these valuables and their consignment before I make up
my mind in any way. I tell you frankly. I'm not running after them--I'm
wanting to find the folk who killed my cousin, and I only hope this young
woman'll be able to give me a hand. And the sooner we get to the bottle
of hay and begin prospecting for the needle the better!"

But the search for Miss Celia Lennard to which Allerdyke alluded so
gloomily was not destined to be either difficult or lengthy. As he and
his companion walked along one of the platforms in the Waverley Station
in Edinburgh that evening, on their way to a cab, Allerdyke suddenly
uttered a sharp exclamation and seized the American by the elbow,
twisting him round in front of a big poster which displayed the portrait
of a very beautiful woman.

"Good Lord!" he exclaimed. "There she is! See? That's the woman. Man
alive, we've hit it at once! Look!"

Fullaway turned and stared, not so much at the portrait as at the big
lettering above and beneath it:

ZELIE DE LONGARDE,
THE WORLD-FAMED SOPRANO.
RECENTLY RETURNED FROM MOSCOW
AND ST. PETERSBURG.
Only Visit to Edinburgh this Year.
TO-NIGHT AT 8.