Porthos alone said nothing, but merely bowed.
D'Artagnan, having tenderly embraced his two old friends, left Belle-Isle with the inseparable companion with whom M.Colbert had saddled him.

Thus, with the exception of the explanation with which the worthy Porthos had been willing to be satisfied, nothing had changed in appearance in the fate of one or the other, "Only," said Aramis, "there is D'Artagnan's idea." D'Artagnan did not return on board without profoundly analyzing the idea he had discovered.

Now, we know that whatever D'Artagnan did examine, according to custom, daylight was certain to illuminate.

As to the officer, now grown mute again, he had full time for meditation.
Therefore, on putting his foot on board his vessel, moored within cannon-shot of the island, the captain of the musketeers had already got together all his means, offensive and defensive.
He immediately assembled his council, which consisted of the officers serving under his orders.

These were eight in number; a chief of the maritime forces; a major directing the artillery; an engineer, the officer we are acquainted with, and four lieutenants.