so,
No character may advance more than one level due to the experience points from a single adventure. For example, a Thief is 1st level and has 1,000 XP before going on an adventure; during the adventure, he earns 2,000 more XP (an amazing feat). This would make his total 3,000 XP, and he would be a 3rd level Thief. This is not allowed; instead, he advances to 2,499 XP, one short of the amount required for 3rd level, and starts his next adventure at 2nd level.
Awarding Experience Points for Defeating Monsters and Completing Quests
Experience is given for monsters defeated and for other challenges as the GM sees fit. Non-combat challenges may be assigned a level, or a flat XP value assigned, as the GM wishes.
Awarding Experience Points for Treasure Gained
Experience points are also earned for treasure gained, at a rate of 1 GP = 1 XP. When experience is awarded for treasure, it is awarded only for treasure acquired in dungeons and returned to a place of safety where it can be spent on equipment, training, strongholds, etc.
Awarding Experience Points for Magical Research
Experience Points are granted to characters who successfully complete magical research (rate of 1 XP per 10 gp spent).