"Next to naught," said Appleyard. "In a case like this you ought to know more. Fullaway may be all right. Fullaway may be all wrong. His lady secretary may be as right as he is, or as wrong as he is. As to Delkin--he might be a creature of Fullaway's imagination. Put it all to yourself now, Mr. Allerdyke--on the face of what you've told me, these three people--two of 'em, at any rate, for a certainty--knew about these valuables coming over in Mr. James's charge. So far as you know, your cousin had 'em when he left Christiania and reached Hull. There they disappear. So far as you're aware, nobody but these people knew of their coming--no other people in England knew, at any rate, so far, I repeat, as your knowledge goes. I should want to know something about these three, if I were in your place, Mr. Allerdyke." "Aye--aye!" replied Allerdyke. "I see your point. Well, I've been in Fullaway's company now for two days--there's no denying he's a smart chap, a clever chap, and he seems to be doing good business. Moreover, Ambler, my lad, James knew him and James wasn't the sort to take up with wrong 'uns. As to the secretary, I can't say. Besides, Fullaway said this afternoon that he hadn't told her all about it yet." "All about the Hull affair and the Lennard affair, I took that to mean from your account," remarked Appleyard. "If she's his confidential secretary, with access to his papers and business, she'd know all about the Princess transaction. Now, of course, an inquiry or two of the usual sort would satisfy you about Fullaway--I mean as a business man. An inquiry or two would tell you all about Delkin. But you can't get to know all about Mrs. Marlow from any inquiry. And you can't find out all about Fullaway from any inquiry. He may be the straightest business man in all London--and yet have a finger in this pie, and his secretary with him. Two hundred and fifty thousand pounds' worth of jewels, Mr. Allerdyke, is--a temptation! And--these folks knew the jewels were on the way. What's more, they'd time to intercept their bearer--Mr. James." Allerdyke rubbed his chin and knitted his brows in obvious bewilderment. "There must ha' been more than them in at it," he said musingly. "A regular gang of 'em, judging by results." "Every gang has its ganger," replied Appleyard, with a knowing smile. "There's no doubt this is a big thing--but there must be a central point, a head, a controlling authority in it. We come back, you see, after all, to where we started--these people were the only people in England who knew about these jewels, so far as we know." "Aye, but only so far as we know," said Allerdyke. "There may have been others. There may have been folks who got to know about them over there in Russia and who communicated their knowledge to some folks here. And there's always this to be borne in mind--the affair, the plot, may have been originated there, and worked from there. Remember that!"