This was his expression.

Who was Claquesous? He was night. He waited until the sky was daubed
with black, before he showed himself. At nightfall he emerged from the
hole whither he returned before daylight. Where was this hole? No one
knew. He only addressed his accomplices in the most absolute darkness,
and with his back turned to them. Was his name Claquesous? Certainly
not. If a candle was brought, he put on a mask. He was a ventriloquist.
Babet said: "Claquesous is a nocturne for two voices." Claquesous was
vague, terrible, and a roamer. No one was sure whether he had a name,
Claquesous being a sobriquet; none was sure that he had a voice, as his
stomach spoke more frequently than his voice; no one was sure that he
had a face, as he was never seen without his mask. He disappeared as
though he had vanished into thin air; when he appeared, it was as though
he sprang from the earth.

A lugubrious being was Montparnasse. Montparnasse was a child; less than
twenty years of age, with a handsome face, lips like cherries, charming
black hair, the brilliant light of springtime in his eyes; he had all
vices and aspired to all crimes.

The digestion of evil aroused in him an appetite for worse. It was the
street boy turned pickpocket, and a pickpocket turned garroter. He was
genteel, effeminate, graceful, robust, sluggish, ferocious. The rim of
his hat was curled up on the left side, in order to make room for a tuft
of hair, after the style of 1829. He lived by robbery with violence.
His coat was of the best cut, but threadbare. Montparnasse was a
fashion-plate in misery and given to the commission of murders. The
cause of all this youth's crimes was the desire to be well-dressed. The
first grisette who had said to him: "You are handsome!" had cast the
stain of darkness into his heart, and had made a Cain of this Abel.
Finding that he was handsome, he desired to be elegant: now, the
height of elegance is idleness; idleness in a poor man means crime. Few
prowlers were so dreaded as Montparnasse. At eighteen, he had already
numerous corpses in his past. More than one passer-by lay with
outstretched arms in the presence of this wretch, with his face in a
pool of blood. Curled, pomaded, with laced waist, the hips of a woman,
the bust of a Prussian officer, the murmur of admiration from the
boulevard wenches surrounding him, his cravat knowingly tied, a bludgeon
in his pocket, a flower in his buttonhole; such was this dandy of