The current and the cut
Morning came to the composing room the way it always did, grey first and then gilt, sliding along the long brass rule of the stone where the formes were locked. Halloran had not slept. He stood with the proof in one hand and the wire of the reading lamp humming faintly above him, and for the length of one held breath he let the sentence run.
You could follow a story the way you followed that wire — hand over hand, never letting go, the lit part behind you and the dark part ahead, until the two met at the place you had reached.