When Jack of Blades goes to activate the focus sites across Albion, the monsters spawned (Undead, Minions & Screamers) will keep on coming. This is a good chance to acquire as much expierience points as possible and if you have any Ages of Will, Skill, or Might potions left in your inventory, nows your chance to use them. Your combat multiplier can reach numbers higher than 100! Just make sure you stock on heaps of Health and Mana potions and try not to get hit too much. I found it easy by mastering 'Enflame' magic and repeatively used it. Another good way is to fight inside Hobbe cave - a small and secluded area, the enemies will form a bottleneck where you can keep on casting Enflame. By the end, you can basically master EVERYTHING. I've managed to master everything after this event and still have 500,000 expierience points spared. I guess I overdone it ...