"Voice, but not human?" repeated the warden, puzzled.
"It sounded muffled and--and far away--and ghostly," explained the man.
"Did it come from inside or outside the prison?"
"It didn't seem to come from anywhere--it was just here, here, everywhere. I heard it. I heard it."
For an hour the warden tried to get the story, but Ballard had become suddenly obstinate and would say nothing--only pleaded to be placed in another cell, or to have one of the jailers remain near him until daylight. These requests were gruffly refused.
"And see here," said the warden, in conclusion, "if there's any more of this screaming I'll put you in the padded cell."
Then the warden went his way, a sadly puzzled man. Ballard sat at his cell door until daylight, his face, drawn and white with terror, pressed against the bars, and looked out into the prison with wide. staring eyes.
That day, the fourth since the incarceration of The Thinking Machine, was enlivened considerably by the volunteer prisoner, who spent most of his time at the little window of his cell. He began proceedings by throwing another piece of linen down to the guard, who picked it up dutifully and took it to the warden. On it was written:
"Only three days more."
The warden was in no way surprised at what he read; he understood that The Thinking Machine meant only three days more of his imprisonment, and he regarded the note as a boast. But how was the thing written? Where had The Thinking Machine found this new piece of linen? Where? How? He carefully examined the linen. It was white, of fine texture, shirting material. He took the shirt which he had taken and carefully fitted the two original pieces of the linen to the torn places. This third piece was entirely superfluous; it didn't fit anywhere, and yet it was unmistakably the same goods.