This _appartement_ on the fifth floor had grown in value with each moment of denial.
"Thank you, madame, a thousand times!" "Shall we mount ?" "On the moment, if you will." Through the glass door they went, and up the stairs, mounting higher and ever higher in an unbroken silence.

Half way up each flight of stairs there was a window through which the light fell upon the bare oak steps, proving them to be spotless and polished as the floor of a convent.

It was an unexpected quality, this rigid cleanliness, and the boy acknowledged it with a mute and deep satisfaction.
Upon each landing were two doors--closed doors that sturdily guarded whatever of secrecy might lie behind, and at each of these silent portals Max glanced with that intent and searching look that one bestows upon objects that promise to become intertwined with one's daily life.
At last the ascent was made, the goal reached, and he paused on the last step of the stairs to survey the coveted fifth floor.
It was as bare, as scrupulously clean as were the other landings; but his quick glance noted that while the door upon the left was plain and unadorned as the others he had passed, that upon the right bore a small brass plate engraved with the name 'L.

Salas.' This, then, was his possible neighbor! He scanned the name attentively.
"This is the fifth floor, madame ?" "The fifth floor, monsieur!" Without ceremony the little woman went forward and, to his astonishment, rapped sharply upon the door with the brass plate.
Max started.

"Madame! The _appartement_ is not occupied ?" The only reply that came to him was the opening of the door by an inch or two and the hissing whisper of a conversation of which he caught no word.