Alexandre Dumas 
The Vicomte De Bragelonne [EPUB ebook] 

The third book in The D’Artagnan Romances. It is now 1660, and although promised the captaincy of the musketeers at the close of Twenty Years After, D’Artagnan is still trailing his sword in the Louvre as a lowly lieutenant. Louis XIV is well past the age where he should rule, but the ailing Cardinal Mazarin refuses to relinquish the reins of power. Meanwhile, Charles II, a king without a country, travels Europe seeking aid from his fellow monarchs. Athos still resides at La Fère while his son, Raoul de Bragelonne, has entered into the service in the household of M. le Prince. As for Raoul, he has his eyes on an entirely different object than his father – his childhood companion, Louise de la Vallière, with whom he is hopelessly in love. Porthos, now a baron, is off on some mysterious mission along with Aramis, who is now the Bishop of Vannes.