Take out the Demon and then go to the Tavelry Stone Circle. A second Cutscene will be shown. They can't stop these Druids! I'm not stopping! Salen disintegrates the Tainted Salve water that is over the Altar Of Guthix and transforms into a Level-198 Druidic Demon.
Max Hit Attack Demon-Salen, and he'll easily get a 68 on you. Be prepared for Melee will reduce his maximum damage to 20-25. Eliminate Demon-Salen, and the creature will drop Tainted Unholy Bones. The body can be buried in the Temple of Zamorak near the Wilderness Edge.
My proselyte armor is impressive. But, I think it's time to give the Temple Knight rank. My suggestion is for that you complete the miniquest and a quest in any order. The miniquest will be discussed in this thread first. The main quest will be discussed in the future. You have to complete three missions using the Temple Knights to earn the mini-quest. Each of the five missions, you'll receive small amounts of cash and exp reward.
Mission 1: Locate the assassin. You'll be transported to Burthorpe to search for the suspected killer of Prince Anlaf. There is more at stake than just one life. This is the heart of a power battle between White Knights, Imperial Guard. To accomplish this task you'll need an iron bar as well as a hammer, and other tools for ranging. Begin by speaking to the servant of Prince Anlaf. He'll suggest you go to the prince's dinner to speak with him. To make sure that the food isn't poisonous, you must test it.
Instead of putting your life at risk take a look at a chemistry textbook that is on the shelf near. It will show that silver dulls when it is in contact with common poison. Turn your silver bar to an iron rod. Check everything out at dinner. It will be evident. The rod will turn black after the dessert is served. This indicates that the food has been poisoned. Speak to the chef, and he'll admit to any illegality. You can make use of your Commorb to acquainted with the chef. He's not even aware of the method by which the apple pie was created.