During the three trials of Odin you’ll come across another rune gate, this one resembles an F. This guide will tell you How To Open The 6th Rune Gate (F) In Hellblade Senua’s Sacrifice so you can progress through the trials to receive the legendary sword.
As with all of the previous gates, make sure you first use your third-eye on the door to unlock the ability to find the rune.
Where To Find The F Rune
You need to be in the “light world” to find this rune. Once you gain access to the large building head inside. Check up on the walls and you’ll see broken wooden walls that look like a backwards version of the F symbol. Stand below those walls on the walkway and look out into the room. You will see the F symbol created by light on the wall and some boxes.
Check out the guide for the next rune gate.