“’You have men posted outside.  Get the lady taken home at once.  Do you hear?  Now.  Before you try to get hold of the man upstairs.’

“‘Oh!  There is a man upstairs,’ scoffed the other, openly.  ’Well, he shall be brought down in time to see the end of this.’

“But Sevrin, beside himself, took no heed of the tone.

“’Who’s the imbecile meddler who sent you blundering here?  Didn’t you understand your instructions?  Don’t you know anything?  It’s incredible.  Here—­’

“He dropped the lapels of the coat and, plunging his hand into his breast, jerked feverishly at something under his shirt.  At last he produced a small square pocket of soft leather, which must have been hanging like a scapulary from his neck by the tape whose broken ends dangled from his fist.

“‘Look inside,’ he spluttered, flinging it in the other’s face.  And instantly he turned round towards the girl.  She stood just behind him, perfectly still and silent.  Her set, white face gave an illusion of placidity.  Only her staring eyes seemed bigger and darker.

“He spoke rapidly, with nervous assurance.  I heard him distinctly promise her to make everything as clear as daylight presently.  But that was all I caught.  He stood close to her, never attempting to touch her even with the tip of his little finger—­and she stared at him stupidly.  For a moment, however, her eyelids descended slowly, pathetically, and then, with the long black eyelashes lying on her white cheeks, she looked ready to fall down in a swoon.  But she never even swayed where she stood.  He urged her loudly to follow him at once, and walked towards the door at the bottom of the cellar stairs without looking behind him.  And, as a matter of fact, she did move after him a pace or two.  But, of course, he was not allowed to reach the door.  There were angry exclamations, a short, fierce scuffle.  Flung away violently, he came flying backwards upon her, and fell.  She threw out her arms in a gesture of dismay and stepped aside, just clear of his head, which struck the ground heavily near her shoe.

“He grunted with the shock.  By the time he had picked himself up, slowly, dazedly, he was awake to the reality of things.  The man into whose hands he had thrust the leather case had extracted therefrom a narrow strip of bluish paper.  He held it up above his head, and, as after the scuffle an expectant uneasy stillness reigned once more, he threw it down disdainfully with the words, ’I think, comrades, that this proof was hardly necessary.’

“Quick as thought, the girl stooped after the fluttering slip.  Holding it spread out in both hands, she looked at it; then, without raising her eyes, opened her fingers slowly and let it fall.

“I examined that curious document afterwards.  It was signed by a very high personage, and stamped and countersigned by other high officials in various countries of Europe.  In his trade—­or shall I say, in his mission?—­that sort of talisman might have been necessary, no doubt.  Even to the police itself—­all but the heads—­he had been known only as Sevrin the noted anarchist.