I finally found the center of the puzzle channel i vivec, and I'm supposed to give a dremora a silver longsword so i can complete the pilgrimage of seven graces, (only ghostgate left).
The problem is that there aint no dremora on the middle is this a bug or something else?
No, seriously. Drown yourself in the canal. When you're just about dead you'll be teleported back onto the platform, you'll be healed, the forcefield will be down and a bridge to that area will appear. Behind the area where the forcefield was is the dremora.