Bonfire not working

I’m trying to fight Dark Sun Gwendolyn but every time I die I respawn at the Anor Londo bonfire. But the Anor Londo bonfire isn’t lit because i killed the fire keeper so I have to walk all the way back to Sen’s Fortress and go to the bonfire there. I can’t go down the Anor Londo elevator because it’s already descended too far. If I were to try to use it I would fall to my death.