What are quest items, keys, and special items for?
Because events can be specified to occur only in the presence of quest items, keys, and special items, information can be carried from event to event through the use of these items. Keys and items can be seen in the party’s inventory (which is separate from the individual party member’s inventory), while quest items cannot. This provides a boolean variable for setting off specific events given the results of previous events. For example, you might have the party get a quest item if they are not searching when entering a building (having them trip an alarm), and include a few more combat events (with monster’s advantage) if the party has that quest item. Key’s and special items work similarly, and can also be used to limit a party’s advance into certain areas of the dungeon if they have not completed certain tasks.