I have a old world,Which Has This huge house with lots of rooms.all the rooms are ok for the npc to spawn.I want to spawn WoF but my guide died in a goblin army a long time ago,So I can't get new ores.I know,you'll say "make a new world", but that is rubbish advice.is there anyway to make the guide move in?

P.S

I didn't make a hellavator yet though -_-'