No, not just the giant robot, everything... except Kro's demony stuff, that was here when I got here.
I found that gem in Furme's room, Discovered it was dangerous and decided to smash it, that's why the demons found us, and by extension that's why the death-robot attacked, and that's why Furme is gone.
Don't you see, I GOT COMPLACENT! Life went so well I thought I could afford to cut corners, not research what I was doing!