I could have read The Last Musketeer 10,000 times without getting the slightest bit bored. It's based on the story of The Three Musketeers by Alexandre Dumas. In this case a modern-day boy accidentally goes through a time portal to ancient Paris. He is following his parents, who also traveled through time and were wrongly accused of trying to assassinate the King. You'll have fun going back in history to have an awesome adventure hundreds of years before your existence. I recommend it to anyone, especially if they know something about the original Three Musketeers.