The Beast of Frostmarch

From the introduction: The Beast of Frostmarch is intended for four characters with an average party level (APL) of 9. Characters who complete this adventure should earn enough experience to reach halfway to 10th-level. A white dragon has taken up residence in a frost giant's hold and begun attacking the nearby villages. This campaign takes place in Arden, although it can be set in your own world. Any party composition should be able to finish the adventure with intelligent play.