She talks as if she had been reading Rousseau on the 'Right of man'.

To propose to endanger our lives for the sake of that scum, La Boulaye! Ciel! It passes belief." But it was in vain that he was sullen and resentful.

Suzanne's mind entertained no doubt of what she should do, and she had her way in the matter, sending back Brutus with the message that she would wait until La Boulaye communicated with her again.
That night Caron slept tranquilly.

He had matured a plan of escape which he intended to carry out upon the morrow, and with confident hope to cradle him he had fallen asleep.
But the morrow--early in the forenoon--brought a factor with which he had not reckoned, in the person of the Incorruptible himself.
Robespierre had returned in hot haste to Paris upon receiving Varennes' message, and he repaired straight to the house of La Boulaye.
Caron was in his dressing-gown when Robespierre was ushered into his study, and the sight of that greenish complexion and the small eyes, looking very angry and menacing, caused the song that the young man had been humming to fade on his lips.
"You, Maximilien!" he exclaimed.
"Your cordial welcome flatters me," sneered the Incorruptible, coming forward.

Then with a sudden change of voice: "What is that they tell me you have done, miserable ?" he growled.
It would have been a madness on Caron's part to have increased an anger that was already mounting to very passionate heights.