Dimalchio's mansion location

Where is it? I’ve been in every location I possibly can.

It is in the upper city. When you port in to the terrace of damsels (or whatever it is called, it is kinda the centre isle), take the porter up and look to the left for the entrance.

The one that has no name if you hover over the entrance on the map, and a see-through closet opposite the entrance? I’ve been in there, but nothing happens. I’m not sure if maybe that closet being there is a bug, and I’m meant to be able to go into the room behind it.

I could only enter it when I had Arue with me in the party. Is she with you?