Rahina bint Zalanis tells you, "I have a trick that will enhance all of your magics. But you will have to hand me a blank augmentation gem first."
Rahina bint Zalanis tells you, "Visit Fiun Rehlyun on the Halaetan Islands if you do not already have an augmentation gem."
You give Rahina bint Zalanis Blank Augmentation Gem.
Rahina bint Zalanis tells you, "Using this gem will teach you my trick to increasing your magical skills. But make sure you read the gem's inscription before you use it. I can't be held responsible for any long-lasting decisions you may mistakenly make."
Rahina bint Zalanis gives you Master of the Five Fold Path.