To these terms M. de Barrault readily agreed; but after the departure of Leyré, conceiving that the extreme mystery enjoined by that personage was merely intended to enhance the implied value of his revelation; and convinced, moreover, that the sovereign would immediately communicate such a circumstance to his ministers, he addressed himself, as he was in the habit of doing, to the Duc de Villeroy, from whom he shortly afterwards received the required promise of both pardon and pension. These were, however, no sooner placed in the hands of the astute Leyré, than, perceiving that they bore the counter-signature of Villeroy, instead of that of Loménie,[233] which would have been the case had they been forwarded through the personal medium of the King, he revealed the whole transaction to M. de Barrault; representing that the traitor being under the roof of the minister by whom they had been despatched, and entirely in his confidence, must already be apprized of his danger, as well as fully prepared to avert it by the destruction of his betrayer; and accordingly he declared that, in order to save his life, he must at once get into the saddle, and endeavour to distance the pursuit which could not fail to be made with a view to seize his person. This reasoning was so valid that the ambassador not only consented to his immediate departure, but also caused him to be accompanied by his own secretary, M. Descartes, by whom he was to be introduced to the sovereign. The precaution proved salutary, as no later than the following morning the officers of the law were sent to the house of Leyré, and being unable to find him, forthwith mounted in their turn and took the road to France. Fortunately for the fugitives they had, however, already travelled a considerable distance; and although hotly pursued, they were enabled to reach Bayonne without impediment, whence they proceeded to Fontainebleau to report their arrival to the King. Before they reached their destination, they encountered the Duc de Villeroy, who was on his way to his château of Juvisy, and to whom Descartes considered it expedient to declare their errand, without concealing the name of the culprit whom they were about to accuse. The Duke listened incredulously; and when the travellers offered, should it meet with his approbation, to return at once to Paris and arrest his secretary, in order that he might himself deliver him up to the monarch, he declined to profit by the proposal, desiring them to fulfil their mission as the service of the King required; and adding, that he should shortly join them at Fontainebleau, where he was to be met on the morrow by the accused party, when the necessary steps for ascertaining the truth of the statement might be at once taken; but that until he had obtained an audience of the monarch, and ascertained his pleasure, all coercive measures would be premature.