It is revealed that he utilizes this location as a kind of RuneScape gold bank. Well, he is Salarin the Twisted. The maze transforms when he teleports out. Return to the portal, walk through, and you'll be able to see the Chaos Druids sipping something. Could it be a potion? Is the world ending?
Brothers Brothers, look! Cream of Escargot is my most loved flavor. This is the answer. Lucien will inquire if they've got the potion. Salarin will reply that they've only given them a brief notice. Lucien will be furious and slash some Druids. When Lucien has gone and you are hiding behind the wall. Dress in Zamorak costumes when Lucien has left. They can be found at the Chaos Druids graves before they died. Talk to Salarin. Offer to help make the potion, but make sure to ask what it is.
Salarin: Lucien came here a week ago and said the feeling of dizziness was a problem. He had just fought off eight people who had were threatening him without cause, and killed 6 of them. Anyway, he said he hadn't felt so good ever since he fused some of the energy contained in the Staff of Armadyl with himself to heal himself of the Curse of, well, you know.
As I was saying before you interrupted me, he needs a small amount of treatment. Therefore, I'll give him a drink that is made from my private herb, some of Zamorak's wine, and the berries ogres seem to have lots of. Here, take this key to obtain the herb. This key is twisted. Bring Salarin a Torstol and an ounce of Wine of Zamorak, and some Jangerberries. You can stay behind the statue and just wait for Lucien to come in.
Have you got my potion yet? Here it is. It's good. It's time to get on with important business. The stone I chose was my most significant disappointment. Movario is either going to show me how to use it, or help me decorate the fireplace of my new palace. I'm thinking I'll resort to buy old school runescape gold stealing the power of Seren to fulfill my goals.