LG adventures are written for ranges of average party levels (APLs). APLs determine the level of challenges you face and rewards you receive. If you are more than two levels away from the APL at which the adventure is being played, you suffer a 50% penalty to GP and XP gained in the adventure. Calculate APL by summing the levels of all characters participating, adding any animals as specified in Chapter 5 of this document. Divide this total by the number of players and round to the nearest whole number, adding one to the result for tables of six characters. If you are more than three levels higher than the APL at which the adventure is being played, you cannot participate.