"Officer, be so good as to keep an eye upon that man."

Mr. Paxton entered the breakfast carriage. What became of the too attentive stranger he neither stopped to see nor cared to inquire. He saw no more of him; that was all he wanted. As the train rushed towards town he ate his breakfast and he read his paper.

The chief topic of interest in the journals of the day was the robbery on the previous afternoon of the Duchess of Datchet's diamonds. It filled them to the almost complete exclusion of other news of topical importance. There were illustrations of some of the principal jewels which had been stolen, together with anecdotes touching on their history--very curious some of them were! The Dukes of Datchet seemed to have gathered those beautiful gems, if not in ways which were dark, then occasionally, at any rate, in ways which were, to say the least of it, peculiar. Those glittering pebbles seemed to have been mixed up with a good deal of trickery and fraud and crime.

The papers gave the most minute description of the more important stones. Even the merest novice in the knowledge of brilliants, if he had mastered those details, could scarcely fail to recognise them if ever they came his way. It appeared that few even royal collections possessed so large a number of really fine examples. Their valuation at a quarter of a million was the purest guesswork. The present duke would not have accepted for them twice that sum.

Half a million! Five hundred thousand pounds! At even 3 per cent.--and who does not want more for his money than a miserable 3 per cent.?-- that was fifteen thousand pounds a year. Three hundred pounds a week. More than forty pounds a day. Over three pounds for every working hour. And Mr. Paxton had it in his pockets!

It was not strange that Mr. Lawrence and his associates should betray such lively anxiety to regain possession of such a sum as that; it would have been strange if they had not! It was a sum worth having; worth fighting for; worth risking something for as well.

And yet there was something; indeed, there was a good deal, which could be said for the other side of the question. Mr. Paxton owned to himself that there was. He could not honestly--if it were still possible to speak of honesty in connection with a gentleman who had launched himself on such a venture--lay his hand upon his heart, and say that he was happier since he had discovered what were the contents of somebody else's Gladstone bag. On the contrary, if he could have blotted out of his life the few hours which had intervened since the afternoon of the previous day, he would have done so, even yet, with a willing hand.

Nor was this feeling lessened by an incident which took place on his arrival at London Bridge. If he were of an adventurous turn of mind, evidently he could not have adopted a more certain means of gratifying his peculiar taste than by retaining possession of the duchess's diamonds. Adventures were being heaped on him galore.

As he was walking down the platform, looking for a likely cab, some one came rushing up against him from behind with such violence as to send him flying forward on his face. Two roughly dressed men assisted him to rise. But, while undergoing their kindly ministrations, it occurred to him, in spite of his half-dazed condition, that they were evincing a livelier interest in the contents of his pockets than in his regaining his perpendicular. He managed to shake them off, however, before their interest had been carried to too generous a length.

The inevitable crowd had gathered. A man, attired as a countryman, was volubly explaining--with a volubility which was hardly suggestive of a yokel--that he was late for market, and was hurrying along without looking where he was going, when he stumbled against the gentleman, and was so unfortunate as to knock him over. He was profuse, and indeed almost lachrymose, in his apologies for the accident which his clumsiness had occasioned. Mr. Paxton said nothing. He did not see what there was to say. He dusted himself down, adjusted his hat, got into a cab and drove away.