From the introduction: Jungle Heat (Vol III): The Belly of the Beast is intended for four characters with an average party level (APL) of 6. Characters who complete this adventure should earn enough experience to reach halfway to 7th-level. The characters must enter a volcano fortress and rescue a kidnapped innocent. 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.