Chapter Iv—the Gropings Of Flight

In order to understand what follows, it is requisite to form an exact idea of the Droit-Mur lane, and, in particular, of the angle which one leaves on the left when one emerges from the Rue Polonceau into this lane. Droit-Mur lane was almost entirely bordered on the right, as far as the Rue Petit-Picpus, by houses of mean aspect; on the left by a solitary building of severe outlines, composed of numerous parts which grew gradually higher by a story or two as they approached the Rue Petit-Picpus side; so that this building, which was very lofty on the Rue Petit-Picpus