Doubt was no longer possible. The Duc de Praslin was the assassin of his wife. As regards the moral evidence, it appeared that for a long time past there had been a grave misunderstanding between the duke and the duchess, and that there had been intimate relations between the duke and Mlle. Deluzy. The governess was arrested and interrogated, when she denied absolutely that there had been any relations of an improper character between herself and the duke. Her answers, however, threw light on the terrible drama that had been enacted in the Praslin family. M. de Praslin, she said, had entrusted her exclusively with the education of his children, and this confidence on his part wounded the duchess both as a wife and as a mother. She threatened to apply to the court for a separation, and, according to Mlle. Deluzy, the perpetual menaces of the wife exasperated the husband to such a point that he at length lost all self-control. In spite of her explanations, Mlle. Deluzy was placed in solitary confinement under the accusation of being the duke’s accomplice. It was proved that she had kept up a correspondence with him since leaving the house, and that he had been to see her on the evening before the night on which the crime was committed. As regarded the duke, the law officers held that his privilege as a peer exempted him from arrest, though he had been taken as nearly as possible _in flagrante delicto_. It was thought sufficient to have him watched in his own house, under the surveillance of police agents; and as King Louis Philippe was at Eu, a special messenger was sent to him, begging him to convoke the Chamber of Peers as a high court of justice. [Illustration: THE HÔTEL DE SENS.] But already a change had taken place in the condition of the Duc de Praslin, who was suddenly attacked with fits of vomiting, followed by an ardent thirst and complete prostration. The doctors thought at first that he was suffering from cholera, but they afterwards believed that he had taken poison. Meanwhile the order convoking the Court of Peers reached Paris on the 20th of August. The President, Duke Pasquier, at once issued a warrant against M. de Praslin; but it was not thought advisable to execute it forthwith. The Duc de Praslin’s house was now surrounded by angry crowds; and of so deadly a character was the rage manifested against him that it was not until three days afterwards, at five in the morning, that the authorities considered it safe to remove him to the prison attached to the Luxemburg Palace.