Action, adventure, excitement, suspense, fantasy, history... Michael Scott's The Alchemyst, the first volume in the The Secrets of the Immortal Nicolas Flamel series, has it all and more.
Firstly, forget the decrepit old man Flamel you briefly met at the end of Harry Potter and the Sorcerer's Stone. The Flamel featured in this series borders on being a butt-kicking action hero. And he's determined not to let his secret formula for immortality fall into the wrong hands. Namely, his nemesis, the equally butt-kicking, and very evil, Dr. John Dee. Aiding Flamel in his perilous quest are a ninja-like vampire and ordinary mortal twins Josh and Sophie Newman, who, as it turns out, may not be so ordinary after all. In fact, they play an essential role in whether the world as we know it is saved or destroyed. There's even a prophecy about them. Sprinkled throughout the series are references to famous characters and places from both history and mythology (I'm sure you'll recognize some). Not to mention some seriously surprising plot twists and turns. And The Alchemyst only scratches the surface of the adventure in store for anyone willing to tackle this totally awesome series.
The Secrets of the Immortal Nicolas Flamel is probably one of my favorite fantasy/adventure series we own. I love reading books where mythology is featured in the plot, but crave something more in depth than Percy Jackson (which is not to say I didn't enjoy Percy Jackson, 'cause I did). This series was exactly what I was looking for. Hopefully you'll enjoy it too! --AJB