Step inside the tower to gain access into Elden Ring Runes the castle's wall. Inside , you'll find two sleeping guards who can be easily dispatched as they attempt to get up. There's an elevator on your left. You can take it down and make your way around the barrels so that you can get an assault at the guards who patrol this zone. Once you've defeated him, are free to loot the Hookclaws found in the back corner of this room.
Return to the stairs and proceed up to the platform on the top. Enemies will throw firebombs at you to set off the barrels that are at the top of stairs. So, roll backwards before the explosion sets off after which you can run up the stairs and get rid of the guards before they can hit you with bombs. On this platform you will see a locked entrance that you will not be able access for the moment, however, look at the right side of the door for the Throwing Dagger x5.
Turn around and go up the next step, and you will enter a hall with a Smoldering Butterfly x3 and more explosive barrels to avoid. Kill the enemy in front of you, then smash down the debris behind you to reveal another set of stairs. Kill your opponent at just the summit of stairs, then go down to pick up the Golden Rune  on the platform below.
Go back up the stairs and open the door on the right wall of the top platform. Entering this room will trigger an animated sequence in which the door closes behind you, and you are locked in by the knight's black armor. Knights are equipped with a large shield, however his slow speed makes him vulnerable to backstabs. Be cautious, however. It's likely that he will employ his Ashes of War Storm Stop ability to summon the wind, which can cause devastating damage if playing a heavily armored character.Once the knight is dead you'll have the option of Elden Ring Items for sale exploring the room and find the Rusty Key and Curved Sword Talisman.