I know getting the Ancient Magicks spellbook is important for many OSRS players.
Before you begin, make sure you have enough money to complete the Desert Treasure quest - you can buy OSRS gold if needed.
Here's exactly how to switch to ancient spellbook OSRS.
First, you need to finish the Desert Treasure quest. This quest unlocks the Ancient Magicks spellbook.
After completing the quest, go to the Ancient Pyramid in the Kharidian Desert. Find the tunnel entrance at the south side of the pyramid.
Enter the pyramid through this tunnel and walk to the throne room. You will see an altar there.
Simply pray at this altar to switch your spellbook. Remember, this action will drain all your Prayer points to zero, but don't worry - you can still switch spellbooks even with zero Prayer points.
That's all you need to do. You can now use Ancient Magicks spells.
If you want to switch back to the normal spellbook, just visit any regular altar in the game.
