From the introduction: The Fall of Captain Starlight 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 distress call has been heard across the cosmos, and only the bravest heroes can hope to save the day. 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.