If the jury believed it, there was an end of the case.

If they had any reasonable doubt at all, the prisoner was entitled to the full benefit of that doubt, and they must acquit her.

If, on the other hand, the facts taken together before and after the murder brought the jury to the conclusion that it was none other than the prisoner who had committed the murder--though, of course, no one was present to see the act committed--they must, in duty to their oaths, find her guilty.
During the judge's address the short November day had turned from afternoon to night, and a great change had come over the aspect of the dim and dingy court.

Opaque globes turned into flaring suns; incandescent burners revealed unsuspected brackets; the place was warmed and lighted for the first time during the week.

And the effect of the light and warmth was on all the faces that rose as one while the judge sidled from the bench, and the jury filed out of their box, and the prisoner disappeared down the dock stairs for the last time in ignorance of her fate.