My son has taken two years of French, so I was going to get some of his favorite novels in French for him to practice with over the summer and help with conversational (versus textbook) speaking. I was looking at Abebooks for The Lightning Thief (or Le Voleur de Foudre) which I can get shipped to the US for a total of about $12.
Those of you who read books in other languages, is there a good place to buy them inexpensively?