Paulin Broquet, the great Parisian detective, has brought the notorious bandit, Zigomar, to justice. Determined not to let the law punish him, he had taken poison in the Hall of Justice. Then he was brought to a hospital where he lay motionless and was visited by hundreds of persons. Among the visitors was a slender woman, dressed in black, who secreted herself in the hospital, and, when all the others had gone, went to the bedside of Zigomar and administered an antidote for poisoning.

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