Here is the info on how Modules and Adventure Paths work for 2nd Edition
PATHFINDER ADVENTURES Pathfinder Adventure: The Fall of Plaguestone can be played to gain specific benefits for the Pathfinder Society Organized Play campaign.
Key Differences from Scenarios Pathfinder Adventures are generally larger with longer play times than scenarios and may take multiple sessions to complete. They do not contain specific faction-related elements, nor are they tiered for play by characters over a wide range of levels. Thematically, most modules do not assume the characters are Pathfinders. These adventures are therefor offered outside of the standard organized play environment and can be played with characters who do not conform to organized play requirements.
Modules can be of varying lengths, and each offer XP and other awards appropriate to their length and playtime. PCs can apply the Chronicle gained for playing Pathfinder Adventure: Fall of Plaguestone (included later in this document) to any of their legal organized play characters, granting that character 1 level’s worth of experience (12 XP), 12 Fame, 30 Treasure Bundles appropriate to a character of that level (applied in batches of 10 Treasure Bundles at each 4 XP interval), and 12 Reputation that can be assigned to any faction for which the character has the Faction Champion boon.
Keepsakes: Chronicle sheets for adventures will occasionally include a section for “Keepsakes”. It is generally assumed that a character will only acquire one keepsake per adventure; once a player has applied this Chronicle to a character and purchased a keepsake from the list, they must cross the remaining items in that list off of their Chronicle sheet. This allows them to repurchase the chosen keepsake or even share access to it with other characters using inheritor boons or other options that allow a player to share boons between characters, but all other items cease to be available (though they may be available for acquisition later through the Achievement Point system.)
Applying Credit Players who complete this adventure, and GMs who run the adventure, gain the Chronicle sheet included with this document which they can apply to any of their Pathfinder Society organized play characters. Players must decide which character to apply credit to when they receive the Chronicle sheet and the GM signs it. Each Chronicle sheet gives 12 XP and access to some or all of the player options (such as items, feats, or spells) contained within the module. Players earn access to the items and options listed on the Chronicle sheets through their actions during the adventure. If the PCs do not discover an item or fulfill the conditions described in the module to gain access to an option, cross that option off of each player’s Chronicle sheet. If a single PC gains access to an option presented on the Chronicle sheet that can only be obtained by one member of the party (such as the fire leopard in Fall of Plaguestone) they have earned that option on the Chronicle sheet for all members of the group.
