How self-centred is man, and how darkly do his own petty interests overshadow the giant things of life. Thrones may totter and fall, monarchs pass to the limbo of memories, whilst we wrestle with an intractable collar-stud. Had another than Inspector Sheffield been driving to Buckingham Palace that day, he might have found his soul attuned to the martial tone about him; for "War! War!" glared from countless placards, and was cried aloud by countless newsboys. War was in the air. Nothing else, it seemed, was thought of, spoken of, sung of.

But Sheffield at that time was quite impervious to the subtle influences which had inspired music-hall song writers to pour forth patriotic lyrics; which had adorned the button-holes of sober citizens with miniature Union Jacks. For him the question of the hour was: "Shall I capture Séverac Bablon?"

He reviewed, in the space of a few seconds, the whole bewildering case, from the time when this incomprehensible man had robbed Park Lane to scatter wealth broadcast upon the Embankment up to the present moment when, it would appear, having acted as best man at a Society wedding, he now was within the precincts of Buckingham Palace.

It was the boast of Séverac Bablon, as Sheffield knew, that no door was closed to him. Perhaps that boast was no idle one. Who was Séverac Bablon? Inspector Sheffield, who had asked himself that question many months before, when he stood in the British Museum before the empty pedestal which once had held the world-famed head of Cæsar, asked it again now. Alas! it was a question to which he had no answer.

The cab stopped in front of Buckingham Palace.

Sheffield paid the man and walked up to the gates. He was not unknown to those who sat in high places, having been chosen to command the secret bodyguard of Royalty during one protracted foreign tour. An unassuming man, few of his acquaintances, perhaps, knew that he shared with the Lord Mayor of London the privilege of demanding audience at any hour of the day or night.

It was a privilege which hitherto he had never exercised. He exercised it now.

Some five minutes later he found himself in an antechamber, and by the murmur of voices which proceeded from that direction he knew a draped curtain alone separated him from a hastily summoned conference. A smell of cigar smoke pervaded the apartment.

Suddenly, he became quite painfully nervous. Was it intended that he should hear so much? Short of pressing his fingers to his ears, he had no alternative.

"We had all along desired that amicable relations be maintained in this matter, Baron."