The very day of their departure a strange incident occurred. A gentleman named Stafford, a brother of Elizabeth's ambassador to the King of France, presented himself at M. de Trappes's, one of the officials in the French chancellery, telling him that he was acquainted with a prisoner for debt who had a matter of the utmost importance to communicate to him, and that he might pay the greater attention to it, he told him that this matter was connected with the service of the King of France, and concerned the affairs of Queen Mary of Scotland. M. de Trappes, although mistrusting this overture from the first, did not want, in case his suspicions deceived him, to have to reproach himself for any neglect on such a pressing occasion. He repaired, then, with; Mr. Stafford to the prison, where he who wished to converse with him was detained. When he was with him, the prisoner told him that he was locked up for a debt of only twenty crowns, and that his desire to be at liberty was so great that if M. de Chateauneuf would pay that sum for him he would undertake to deliver the Queen of Scotland from her danger, by stabbing Elizabeth: to this proposal, M. de Trappes, who saw the pitfall laid for the French ambassador, was greatly astonished, and said that he was certain that M. de Chateauneuf would consider as very evil every enterprise having as its aim to threaten in any way the life of Queen Elizabeth or the peace of the realm; then, not desiring to hear more, he returned to M. de Chateauneuf and related to him what had just happened. M. de Chateauneuf, who perceived the real cause of this overture, immediately said to Mr. Stafford that he thought it strange that a gentleman like himself should undertake with another gentleman such treachery, and requested him to leave the Embassy at once, and never to set foot there again. Then Stafford withdrew, and, appearing to think himself a lost man, he implored M. de Trappes to allow him to cross the Channel with him and the French envoys. M. de Trappes referred him to M. de Chateauneuf, who answered Mr. Stafford directly that he had not only forbidden him his house, but also all relations with any person from the Embassy, that he must thus very well see that his request could not be granted; he added that if he were not restrained by the consideration he desired to keep for his brother, the Earl of Stafford, his colleague, he would at once denounce his treason to Elizabeth. The same day Stafford was arrested.
After this conference, M. de Trappes set out to rejoin his travelling companions, who were some hours in advance of him, when, on reaching Dover he was arrested in his turn and brought hack to prison in London. Interrogated the same day, M. de Trappes frankly related what had passed, appealing to M. de Chateauneuf as to the truth of what he said.
The day following there was a second interrogatory, and great was his amazement when, on requesting that the one of the day before should be shown him, he was merely shown, according to custom in English law, counterfeit copies, in which were avowals compromising him as well as M. de Chateauneuf: he objected and protested, refused to answer or to sign anything further, and was taken back to the Tower with redoubled precaution, the object of which was the appearance of an important accusation.
Next day, M. de Chateauneuf was summoned before the queen, and there confronted with Stafford, who impudently maintained that he had treated of a plot with M. de Trappes and a certain prisoner for debt—a plot which aimed at nothing less than endangering the Queen's life. M. de Chateauneuf defended himself with the warmth of indignation, but Elizabeth had too great an interest in being unconvinced even to attend to the evidence. She then said to M. de Chateauneuf that his character of ambassador alone prevented her having him arrested like his accomplice M. de Trappes; and immediately despatching, as she had promised, an ambassador to King Henry III, she charged him not to excuse her for the sentence which had just been pronounced and the death which must soon follow, but to accuse M. de Chateauneuf of having taken part in a plot of which the discovery alone had been able to decide her to consent to the death of the Queen of Scotland, certain as she was by experience, that so long as her enemy lived her existence would be hourly threatened.
On the same day, Elizabeth made haste to spread, not only in London, but also throughout England, the rumour of the fresh danger from which she had just escaped, so that, when, two days after the departure of the French envoys, the Scottish ambassadors, who, as one sees, had not used much speed, arrived, the queen answered them that their request came unseasonably, at a time when she had just had proof that, so long as Mary Stuart existed, her own (Elizabeth's) life was in danger. Robert Melville wished to reply to this; but Elizabeth flew into a passion, saying that it was he, Melville, who had given the King of Scotland the bad advice to intercede for his mother, and that if she had such an adviser she would have him beheaded. To which Melville answered—
"That at the risk of his life he would never spare his master good advice; and that, on the contrary, he who would counsel a son to let his mother perish, would deserve to be beheaded."
Upon this reply, Elizabeth ordered the Scotch envoys to withdrew, telling them that she would let them have her answer.
Three or four days passed, and as they heard nothing further, they asked again for a parting audience to hear the last resolve of her to whom they were sent: the queen then decided to grant it, and all passed, as with M. de Bellievre, in recriminations and complaints. Finally, Elizabeth asked them what guarantee they would give for her life in the event of her consenting to pardon the Queen of Scotland. The envoys responded that they were authorised to make pledges in the name of the King of Scotland, their master, and all the lords of his realm, that Mary Stuart should renounce in favour of her son all her claims upon the English crown, and that she should give as security for this undertaking the King of France, and all the princes and lords, his relations and friends.
To this answer, the queen, without her usual presence of mind, cried, "What are you saying, Melville? That would be to arm my enemy with two claims, while he has only one".
"Does your Majesty then regard the king, my master, as your enemy?" replied Melville. "He believed himself happier, madam, and thought he was your ally."