While the Court remained with the army near Perpignan, and after its removal to Narbonne, Richelieu still lay dangerously ill at Tarascon. His mind was deeply depressed, as well as his corporeal powers; and in the opinion of all, a few weeks were likely to terminate both his ministry and his existence, even if the eager hand of his enemies did not hurry him onward to more rapid destruction. But the fiery spirit of Cinq Mars brooked no delay: the lazy course of natural decay was too slow for his impatience; and though De Thou, who accompanied his friend to Narbonne, reiterated in his ears the maxims of caution and wisdom, on the other hand Fontrailles, fearful lest he should lose the merit and consequent influence he should acquire by the removal of Richelieu, never ceased to urge the favourite to hurry on the completion of their design.
In the mean time, every thing seemed favourable to the conspirators; and Cinq Mars felt confident that the secret inclination of Louis would second all his views; but nevertheless, he wished for some more public and determinate expression of the King's opinion, before he asked his consent to the measures which had been concerted. After the arrival of the Court at Narbonne, however, the Monarch's conduct in respect to Richelieu became of so decisive a character, that no farther delay appeared necessary. Within a few miles of the place where the Cardinal lay ill, the King seemed entirely to have forgotten that such a man existed, or only to remember him with hatred. His name, if it was ever mentioned, instantly called into Louis's countenance an expression of uneasiness and disapprobation; and by no chance was the King ever heard to pronounce it himself. By all these circumstances, Cinq Mars was determined to communicate to Louis, as soon as possible, the schemes which had been formed for freeing the country from the yoke of Richelieu. He suffered, however, several days to elapse in waiting for a favourable opportunity, and at length, as often happens, growing impatient of delay, took perhaps the most inauspicious moment that could have been selected. It was on a morning when every thing had gone wrong with Louis.
Notwithstanding his failing health, he still clung to his accustomed amusements, and very often rode forth to hunt when he was very unfit for any bodily exercise. On these occasions, the distressing consciousness of his decaying powers always rendered him doubly irritable; and on the day which Cinq Mars unfortunately chose to broach the subject of the dismissal of Richelieu, a thousand trivial accidents had occurred to increase his ill humour to the highest pitch. His horse had fallen with him in the chase; they had beat the country for hours without finding any game worthy of pursuit; and when at length they did rouse a fine boar, and had brought him to bay, he broke out after killing two of the King's best hounds, and plunged into the deepest part of the forest. Louis was returning home from this unsuccessful chase, when Cinq Mars, turning his eyes towards the towers of Tarascon, which just then were seen rising above the trees in the distance, pointed to them with his hunting-whip, saying, "There lies the Cardinal!"