How do I get past this gate? It blocks the alley which bends north of House Dun'Robar, and identical gate blocks the alley south of it. I see no way to get to one rare and several notes west of House Dun'Robar.
A similar gate is in the tower of House Avithoul. Optional goal there is to smash three House Avithoul's relics. One is right in front of you as you step into tower. I assume the other two are behind the gate, but could not get to them.
Also, which portal in House Avithoul goes to draegloth and Matron's Chest? Or are the portals random?