The Rod of Recall can be used again to stop recalling

git-svn-id: http://svn.net-core.org/repos/t-engine4@4405 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/general/objects/quest-artifacts.lua

@@ -309,7 +309,6 @@ newEntity{ base = "BASE_WAND",
 	desc = [[This rod is made entirely of voratun, infused with raw magical energies that can bend space itself.
 You have heard of such items before. They are very useful to adventurers, allowing faster travel.]],
 	cost = 0, quest=true,
-	elec_proof = true,
 
 	max_power = 400, power_regen = 1,
 	use_power = { name = "recall the user to the worldmap", power = 202,

game/modules/tome/data/zones/last-hope-graveyard/zone.lua

@@ -150,8 +150,10 @@ return {
 		end
 
 		local spot = game.level:pickSpotRemove{type="stairs", subtype="stairs"}
-		local g = game.level.map(spot.x, spot.y, engine.Map.TERRAIN)
-		game.zone:addEntity(game.level, floor, "terrain", spot.x, spot.y)
+		if spot then
+			local g = game.level.map(spot.x, spot.y, engine.Map.TERRAIN)
+			game.zone:addEntity(game.level, floor, "terrain", spot.x, spot.y)
+		end
 
 		game.log("#YELLOW#You hear all the doors being shattered into pieces.")
 	end,