Castle Sol is an Elden Ring area located in the Mountaintops of the Giants. The castle has powerful enemies like the Banished Knights. In addition to them being strong, they are in their spectral form which makes them engage and disengage from you whenever they want. The castle holds importance because it contains part of a secret Medallion. This part is necessary if you want to access the west side of Mountaintops of the Giants.
Related: Elden Ring: Giant's Mountaintop Catacombs Dungeon Guide
Conquering the castle will require you to face a challenging foe who will take help from his fellow knights. Here is all you need to know about Castle Sol.
After reaching the entrance of Castle Sol, interact with the Site of Grace and go inside the castle. Inside you will come across a Lion Guardian. If you kill it, it won't spawn again.
Towards your right is Golden Rune [10], collect it and proceed towards the left path.
Go past the wooden barricades and go straight to pick up the Furlcalling Finger Remedy. Head back and go up the steps. Inside will be a room with multiple Slugs and a Nascent Butterfly. Kill the slugs and go up the ladder and pick up the five Fan Daggers from a corpse in the southwest direction.
Traverse the top of the castle and reach the other side through the wooden plank. There will be a Spectral Exile Soldier deal with it and pick up the Golden Rune [10] ahead. Kill the soldier using the Ballista at the end and cross the wooden bridge to reach the other Exile soldiers.
Pick up the Smithing Stone [6] from here and drop down using the ladder. You can examine the painting in this room and collect the "Sorcerer" Painting. Open the door and kill the Lone Wolf on your left. Go right and kill the two wolves and the
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