Start by talking to Ur Tag in Dorgeshkan. Speak about Zanik, and you find out that Oldak went to the surface to gather some"resources Old School RuneScape Gold". Head to Duke Horacio, and he will state his trade secretary was robbed recently. The method of entry points into HAM.

Nothing was taken except a client evaluation that the secretary had, and one of Oldak's teleport spheres. Inquire about Oldak, and you find that the evaluation mentioned that he was timid of their surface and preferred to maintain a location that reminded him of home. You also learn that the files mentioned the fact that Zanik no longer coordinates trade. So, HAM might now know Zanik is gone.

Head to Lumbridge Swamp and you'll see Oldak as well as the 4 adventurers (from Lost City) arguing. Oldak believes they understand about the fairy rings, they believe he understands about Zanaris. Interrupt to point out to them the best way to enter Zanaris and you will be given 10k.

Ask Oldak why he wishes to know more about the fairy circles, and he will say that he wants to return to Yubiusk to save Zanik. Tell him about the Dramen Staff, and he'll say it is too inconvenient to go to Entrana every time he wants one, so he tells you that the both of you have to visit the Dramen Tree, try to get a seed, and grow a new Dramen Tree at Dorgeshkan.

Visit the Port Sarim pub and you'll see a cutscene with Oldak asking some drunken sailors directions to the Entrana ship. Among the sailors will start attacking Oldak. Talk to Oldak and you'll see a cutscene of you two sailing into Entrana. Head to the cave, beyond the zombies, you don't want an axe, and into the tree Buy OSRS Accounts. Oldak will harvest a seed and also inform you that his teleorb got damaged by the demons. Rather than going there however, well, where you property, this dialogue will occur.