It was omnipresent, coming from the heights and from the depths, being beautiful and horrible, being an irresistible command.

It was high above the town. It was the voice of the town.

Metropolis raised her voice. The machines of Metropolis roared; they wanted to be fed.

Freder pushed open the glass doors. He felt them tremble like strings under strokes of the bow. He stepped out on to the narrow gallery which ran around this, almost the highest house of Metropolis. The roaring sound received him, enveloped him, never coming to an end.

Great as Metropolis was: at all four corners of the city, this roared command was equally perceptible:

Freder looked across the city at the building known to the world as the "New Tower of Babel."

In the brain-pan of this New Tower of Babel lived the man who was himself the Brain of Metropolis.

As long as the man over there, who was nothing but work, despising sleep, eating and drinking mechanically, pressed his fingers on the blue metal plate, which apart from himself, no man had ever touched, so long would the voice of the machine-city of Metropolis roar for food, for food, for food…

She wanted living men for food.

Then the living food came pushing along in masses. Along the street it came, along its own street which never crossed with other people's streets. It rolled on, a broad, an endless stream. The stream was twelve files deep. They walked in even step. Men, men, men—all in the same uniform, from throat to ankle in dark blue linen, bare feet in the same hard shoes, hair tightly pressed down by the same black caps.

And they all had the same faces. And they all appeared to be of the same age. They held themselves straightened up, but not straight. They did not raise their heads, they pushed them forward. They planted their feet forward, but they did not walk. The open gates of the New Tower of Babel, the machine center of Metropolis, gulped the masses down.

Towards them, but past them, another procession dragged itself along, the shift just used. It rolled on, a broad, an endless stream. The stream was twelve files deep. They walked in even step. Men, men, men—all in the same uniform, from throat to ankle in dark blue linen, bare feet in the same hard shoes, hair tightly pressed down by the same black caps. And they all had the same faces. And they all seemed one thousand years old. They walked with hanging fists, they walked with hanging heads. No, they planted their feet forward but they did not walk. The open gates of the New Tower of Babel, the machine centre of Metropolis, threw the masses up as it gulped them down.

When the fresh living food had disappeared through the gates the roaring voice was silent at last. And the never ceasing, throbbing hum of the great Metropolis became perceptible again, producing the effect of silence, a deep relief. The man who was the great brain in the brain-pan of Metropolis had ceased to press his fingers on the blue metal plate.

In ten hours he would let the machine brute roar anew. And in another ten hours, again. And always the same, and always the same, without ever loosening the ten-hour clamp.

Metropolis did not know what Sunday was. Metropolis knew neither high days nor holidays.