Come back to my own pyramid for one last task from Sunxuemei's blog

Now you must OSRS gold travel back to each shrine (you can do this in almost any order, but you must be wearing the Pendant of Azzanadra.) When you arrive at a shrine, you need to use the Potion of Zaros (4) on the altar, and it'll begin to shine a color again, depending on what colour it was originaly. Subsequently throw a smoke, blood, shadow, and ice spell around the altar. Whenever you've used the potion using the last altar in the last shrine and casted the spells, Azzanadra will appear.

Come back to my own pyramid for one last task. He'll then disappear straight away. Azzanadra will once more appear there. However, I want your assistance once more. So, you need me to explore? Yes. I believe there is another thing there that should be brought back to my pyramid to continue the war with Zamorak.

What do you want this time? My sword. It's an object of fantastic power, and it might be used to kill many Zamorakians. I believe that it was mistakenly put in the hidden room. I will go get it. Now you must return to the crypt into King Alirin's throne room. If you try and enter from the doorway south-west of the bandit's camp, then you will find it is sealed off by a rockslide. Instead, you must visit the secret entry by Eblis as well as the mirrors.

Along the cliffs, there is a cave entrance. Enter it, and walk down the long passageway until you visit a door. Open it, and you'll be in King Alirin's throne room. Search the floor of this room till you find a trapdoor. Open it, and then walked down the ladder. You may come to a circular chamber with five tombs along the side. Immedietly once you enter that room, a mummy (level 98), will come out of each of the tombs. You have to defeat all of them, then search there tombs that they arrived from. On any random one from the five, you will encounter a buy RS3 gold secret doorway.