Chapter 42, Belle-Isle-En-Mer, Chapter 43, The Explanations of Aramis, Chapter 44, Result of the Ideas of the King and the Ideas of D'Artagnan, and Chapter 45, The Ancestors of Porthos Summary

Aramis and Porthos are at Belle-Isle, disturbed to learn all the fishing boats have disappeared. Aramis is angry that Porthos sent the last two boats to find the others. Porthos wants to return to France, and Aramis says they could have if he had not sent out the last two boats. Aramis has told Porthos that they are at the fortress to hold it against a false king who wants to sell the island to England. A fleet appears, bearing the royal colors of France. Aramis asks Porthos to sound the alarm for...