Glad everyone seems to be having fun.  :-)<br/><br/><br/>The facility is dug out from solid rock, and if you actually do perform an augury on the lever, you'll find that pulling it results in weal/woe for the city and definite woe for the person who pulls it.<br/><br/>As for the spell, an undead exodus would still be a much less severe problem than an undead producing factory in a tunnel complex gradually working on a zombie apocalypse.<br/><br/>If the evacuation order goes out, critically injured and dying people all over Karrnath will try and travel to irontown, to try and bathe in the positive energy and heal their illnesses.  (or attain immortality by being raised as deathless)  Farmers will also try to place crops within the radius of effect, and hire warforged (who aren't risking death) golems, animated objects, and deathless to harvest the resulting bucketloads of food, which will be supernaturally delicious.  Most of those who remain in the positive energy field will take shelter in fires and pots of boiling water to avoid death.  (though a few may just be planning on scourging themselves with whips or daggers to stay alive)<br/><br/>The priests of the sovereign host are allowed to perform the planar convergence ritual precisely once per year (by request of the dragonmarked houses) and it is primarily used to relieve famine.  About 5,000 people have become deathless in the last century as a result of the ritual.  During the last war, the Blood of Vol stole the lenses to perform the ritual, and the inability to perform it is considered a major reason why Karrnath starved and was unable to continue the war.