The Cavalier in the Yellow Doublet — Arturo Perez-Reverte

In the cosmopolitan world of seventeenth-century Madrid, with its posh theaters and gleaming palaces, Captain Alatriste and his protégé, Íñigo, are fish out of water. But the king and court are keeping Alatriste on retainer-he has proved useful in the past. As a veteran with no other source of income, Alatriste chooses to remain, even as his "employment" brings him uncomfortably close to old enemies. Íñigo, now a young man and veteran of the Hundred Years War, chooses to remain with his master and press his ill-fated romance with the beautiful but sinister Angélica de Alquézar. Alatriste, for his part, begins an affair with the famous-and famously beautiful- actress María de Castro, and discovers that the competition for her favors may be much more dangerous than he'd bargained for, especially when Alatriste and Íñigo become unwilling participants in a court conspiracy that could lead them both to the gallows.