Always check the text box after castin create portal! If it doesnīt say "Portal Created" try again. And yes you use ctrl to cast it. Luckily you donīt need teleport to get to Ishad Nīha. Stand by the trees facing Torin on the Brimloch side. Save your game and cast vanish. That should out you on the IShad Nīha side. If it puts you completely wrong, like in the middle of some trees with no way out, reload.