"Fire odor, the scent of a fallen meteor, hot metal. A ship has come from another world. The brass smell, the dusty fire smell of burned powder, sulphur, and rocket brimstone."
This information, stamped on tapes which sprocketed into slots, slid down through yellow cogs into further machines.
Click-chakk-chakk-chakk.
A calculator made the sound of a metronome. Five, six, seven, eight nine. Nine men! An instantaneous typewriter inked this message on tape which slithered and vanished.
Clickety-click-chakk-chakk.
The city awaited the soft tread of their rubberoid boots.
The great city nostrils dilated again.
The smell of butter. In the city air, from the stalking men, faintly, the aura which wafted to the great Nose broke down into memories of milk, cheese, ice cream, butter, the effluvium of a dairy economy.
Click-click.
"Careful, men!"
"Jones, get your gun out. Don't be a fool!"
"The city's dead; why worry?"
"You can't tell."
Now, at the barking talk, the Ears awoke. After centuries of listening to winds that blew small and faint, of hearing leaves strip from trees and grass grow softly in the time of melting snows, now the Ears oiled themselves in a self-lubrication, drew taut, great drums upon which the heartbeat of the invaders might pummel and thud delicately as the tremor of a gnat's wing. The Ears listened and the Nose siphoned up great chambers of odor.
The perspiration of frightened men arose. There were islands of sweat under their arms, and sweat in their hands as they held their guns.
The Nose sifted and worried this air, like a connoisseur busy with an ancient vintage.
Chikk-chikk-chakk-click.
Information rotated down on parallel check tapes. Perspiration; chlorides such and such per cent; sulphates so-and-so; urea nitrogen, ammonia nitrogen,thus: creatinine, sugar, lactic acid,there!
Bells rang. Small totals jumped up.
The Nose whispered, expelling the tested air. The great Ears listened:
"I think we should go back to the rocket, Captain."
"I give the orders, Mr. Smith!"
"Yes, sir."
"You, up there! Patrol! See anything?"
"Nothing, sir. Looks like it's been dead a long time!"
"You see, Smith? Nothing to fear."
"I don't like it. I don't know why. You ever feel you've seen a place before? Well, this city's too familiar."
"Nonsense. This planetary system's billions of miles from Earth; we couldn't possibly've been here ever before. Ours is the only light-year rocket in existence."
"That's how I feel, anyway, sir. I think we should get out." The footsteps faltered. There was only the sound of the intruder's breath on the still air.
The Ear heard and quickened. Rotors glided, liquids glittered in small creeks through valves and blowers. A formula and a concoction--one followed another. Moments later, responding to the summons of the Ear and Nose, through giant holes in the city walls a fresh vapor blew out over the invaders.