There only they explained to them the matter in hand.
D'Artagnan was well known among the honorable corps of the king's Musketeers, in which it was known he would one day take his place; he was considered beforehand as a comrade.

It resulted from these antecedents that everyone entered heartily into the purpose for which they met; besides, it would not be unlikely that they would have an opportunity of playing either the cardinal or his people an ill turn, and for such expeditions these worthy gentlemen were always ready.
Athos divided them into three groups, assumed the command of one, gave the second to Aramis, and the third to Porthos; and then each group went and took their watch near an entrance.
D'Artagnan, on his part, entered boldly at the principal gate.
Although he felt himself ably supported, the young man was not without a little uneasiness as he ascended the great staircase, step by step.

His conduct toward Milady bore a strong resemblance to treachery, and he was very suspicious of the political relations which existed between that woman and the cardinal.

Still further, de Wardes, whom he had treated so ill, was one of the tools of his Eminence; and d'Artagnan knew that while his Eminence was terrible to his enemies, he was strongly attached to his friends.
"If de Wardes has related all our affair to the cardinal, which is not to be doubted, and if he has recognized me, as is probable, I may consider myself almost as a condemned man," said d'Artagnan, shaking his head.

"But why has he waited till now?
That's all plain enough.