Travel to the Emerald Nightmare and cleanse Cenarius of his affliction. Bring back anything you discover to Kuhuine in Dalaran.
I have a theory on how we can better harvest this felwort, <name>. You see, sometimes in order to understand how something comes into being, you have to work backwards.
If you were able to cleanse that corruption, find a way to understand how it works and remove it, I think we can apply that to how we harvest these herbs.
I hope you bring some friends with you on this journey, for this may be your greatest lesson.
<Kuhuine carefully takes the seed from you and listens to your tale of Cenarius' cleansing.>
Fascinating! If what you're saying is true then that means we can harvest Felwort in a similar manner. Now listen...