I hide full Invis? Does See Invis work on it?

[Swish]

OK well, for starters... if you hide in MM and sit at the zoneline you'll be able to see the full zone train from Castle and be able to sit through everything - both dead and undead. I've done it, it works. Obviously you need to have a mob targeted to "con" against to make sure you're hidden (if you're not a rogue etc), indifferent = hidden (unless the mob is indifferent to you anyway), anything else = not hidden.

I'd take an unscientific wild guess that anything in the "old world" will abide by the hide rules (if you're hidden, both dead and undead cannot see you), but as for Kunark its perhaps not quite as clear cut.