That is the historical background for this story. Ball has done his homework on this novel, the research shows every where, from descriptions of galleons, to the medevial weapons and battle tactics, to the amazing world of the Sultan's court. But the research is unobtrusive, the details fit neatly into place within the context of the story. These details bring the novel alive, making the story seem authentic (and the brutal siege almost unendurable.) Ball does a good job of showing characters on boths sides, Turks and Christians. There characters are complex, the bad guys have good sides, no cardboard characters here.
Ironfire is the story of a brother (Nico) and sister (Maria) born on the island of Malta. At the opening of the novel, they have disobediently snuck away from chores to search for treasure amongst the ancient ruins of Malta. But a Turkish corsair happens to have hidden his galley on that side of the island, making emergency repairs to his ship. A couple of pirates are sent ashore to watch for patrols, and chance upon the two children. Nico is taken captive, and destined for a life of slavery. From this point forward, the novel alternates between their two tales, each of which is absorbing and perilous for our heroes. Other major characters are introduced: Christien de Vries, son of a French count, who is more interested in the lowly profession of surgeon/healer rather than the esteemed role of warrior knight. Father Salvago, an ambitious man of the cloth with some weaknesses in his character. Leonardus, a Venetian master shipbuilder who was captured as a slave an now must labor to build ships for the enemy.
The novel advances the lives of these characters (and many more) until all the story threads come together at the horrific siege of Malta. Much like Gates of Fire, Pressfield's novel about the battle of Thermoplyae, the description of warfare is overwhelmingly brutal and savage. It seems incredible that anyone can survive (and most people don't) the repeated assaults. Of course, I know enough about history to know the ultimate outcome, just as everyone knows who won the battle of Thermoplyae, but the doesn't diminish the urgent tension of the story, as our heroes are repeated exposed to incredible danger and death all around. I kept reading and reading, surely the sign of an engrossing book!
I definitely must look into Empires of Sand, Ball's first novel. Could his first attempt possibly match Ironfire? I am eager to find out!