They found a table, inkstand, and materials for writing.

Monk took up a pen, wrote a single line, signed it, folded the paper, sealed the letter with the seal of his ring, and handed over the missive to Athos, saying, "Monsieur, carry, if you please, this letter to King Charles II., and set out immediately, if nothing detains you here any longer." "And the casks ?" said Athos.
"The fisherman who brought me hither will assist you in transporting them on board.

Depart, if possible, within an hour." "Yes, general," said Athos.
"Monsieur D'Artagnan!" cried Monk, from the window.

D'Artagnan ran up precipitately.
"Embrace your friend and bid him adieu, sir; he is returning to Holland." "To Holland!" cried D'Artagnan; "and I ?" "You are at liberty to follow him, monsieur; but I request you to remain," said Monk.

"Will you refuse me ?" "Oh, no, general; I am at your orders." D'Artagnan embraced Athos, and only had time to bid him adieu.