Bourgonef was an ardent republican.  So was I; but my color was of a different shade from his.  He belonged to the Reds.  My own dominant tendencies being artistic and literary, my dream was of a republic in which intelligence would be the archon or ruler; and, of course, in such a republic, art and literature, as the highest manifestation of mind, would have the supreme direction.  Do you smile, reader?  I smile now; but it was serious earnest with me then.  It is unnecessary to say more on this point.  I have said so much to render intelligible the stray link of communion which riveted the charm of my new acquaintance’s conversation; there was both agreement enough and difference enough in our views to render our society mutually fascinating.

On retiring to my room that afternoon I could not help laughing at my absurd antipathy against Bourgonef.  All his remarks had disclosed a generous, ardent, and refined nature.  While my antipathy had specially fastened upon a certain falseness in his smile—­a falseness the more poignantly hideous if it were falseness, because hidden amidst the wreaths of amiability—­my delight in his conversation had specially justified itself by the truthfulness of his mode of looking at things.  He seemed to be sincerity itself.  There was, indeed, a certain central reserve; but that might only he an integrity of pride; or it might be connected with painful circumstances in his history, of which the melancholy in his face was the outward sign.

That very evening my constructive imagination was furnished with a detail on which it was soon to be actively set to work.  I had been rambling about the old fortifications, and was returning at nightfall through the old archway near Albert Durer’s house, when a man passed by me.  We looked at each other in that automatic way in which men look when they meet in narrow places, and I felt, so to speak, a start of recognition in the eyes of the man who passed.  Nothing else, in features or gestures, betrayed recognition or surprise.  But although there was only that, it flashed from his eyes to mine like an electric shock.  He passed.  I looked back.  He continued his way without turning.  The face was certainly known to me; but it floated in a mist of confused memories.

I walked on slowly, pestering my memory with fruitless calls upon it, hopelessly trying to recover the place where I could have seen the stranger before.  In vain memory traveled over Europe in concert-rooms, theaters, shops, and railway carriages.  I could not recall the occasion on which those eyes had previously met mine.  That they had met them I had no doubt.  I went to bed with the riddle undiscovered.

II

THE ECHOES OF MURDER

Next morning Nuremberg was agitated with a horror such as can seldom have disturbed its quiet; a young and lovely girl had been murdered.  Her corpse was discovered at daybreak under the archway leading to the old fortifications.  She had been stabbed to the heart.  No other signs of violence were visible; no robbery had been attempted.