Researcher Pio:
I assume Corrupted Energy is influencing on growlers.
I've kept watch over them and almost sure I'm right.
We need to study Corrupted Energy. That's why you have to kill Fear Growler, Fear Growler Evolved and Fear Growler Robust, gather the energy and bring it to me.
I suppose you don't know where to find the creatures, so I'll teleport you to them.
Teleport