Travel to Moonglade and speak with Dendrite Starblaze in the village of Nighthaven.
You're now ready to learn about poison and the power we as druids have over it, <name>. Cenarius has blessed us with the ability to purge even the most foul of poisons with but a mere incantation. This gift is not to be taken lightly... and to ensure you learn this lesson, you'll work to address the effects of poisonings as a layman would.
Travel to Moonglade and speak with Dendrite Starblaze; he awaits your arrival to begin your lesson.
Greetings young druid, I'm glad to see you ready and eager to learn about the curing of poisons.
While most druids in the past were put through pre-planned trials, your work will involve no such thing. There has been a rash of animal poisonings at the Crossroads in the Barrens, and they're unable to bring it under control. Someone there has requested Moonglade for aid, so we are sending you there to aid them. This is no exercise - the work you'll do is quite real. Bear this in mind.