You can visit any of the Elden Ring’s Divine Towers to activate Greater Runes, find good loot, and also fight some powerful enemies. One of these towers in Liurnia requires you to go pretty deep into an NPC’s quest line before you can access it. How to get into the Liurnia Divine Tower.
You will enter the Liurnia Divine Tower via the Carian Study Hall, but not at first. You must first obtain the Reverse Carian Statue, which can only be acquired through the Ranni the Witch quest line. To begin her quest line, speak to her in the Three Sisters area, which you can find as you battle your way through Carian Manor. She will task you with finding the Eternal City of Nokron, which you can access after defeating Starscourge Radahn. Once in Nokron you need to find the Fingerslayer Blade. After getting this item, return it to Ranni and she will give you the inverted Karian statue.
Now go to the Carian Study Hall which we have marked on the map below.
Go inside and you will see a pedestal in front of you. Interact with this pedestal and your character will place the statue on it. The entire study hall is now turned upside down and you can move forward. The inverted study hall requires a bit of platforming and is riddled with fast-moving enemies, so tread carefully. There should be an elevator in the middle of the inverted study hall that you can take down. Take it and then go through the large double doors in front of you.
You are now at the bridge leading to the Liurnia Divine Tower. On it is a powerful Godskin noble that you can either fight or run past. Once you get past this enemy, just go across the bridge, take the elevator up and you’ll be at the top of the tower.
https://www.gamepur.com/guides/how-to-unlock-the-liurnia-divine-tower-in-elden-ring How to unlock the Liurnia Divine Tower in Elden Ring