diff --git a/mods/mobs/dungeonmaster.lua-new b/mods/mobs/dungeonmaster.lua
similarity index 79%
rename from mods/mobs/dungeonmaster.lua-new
rename to mods/mobs/dungeonmaster.lua
index b36d6fb9..5e9e64d3 100644
--- a/mods/mobs/dungeonmaster.lua-new
+++ b/mods/mobs/dungeonmaster.lua
@@ -119,11 +119,37 @@ mobs:register_arrow("mobs:fireball", {
 			local n = minetest.get_node(p).name
 			-- do NOT destroy protection nodes but DO destroy nodes in protected area
 			if not n:find("protector:") then -- and not minetest.is_protected(p, "") then
-			if minetest.registered_nodes[n].groups.flammable or math.random(1, 100) <= 30 then
-				minetest.set_node(p, {name="fire:basic_flame"})
-			else
-				minetest.remove_node(p)
-			end
+				local excluding = minetest.get_item_group(n, "unbreakable") == 1
+					or n:split(":")[1] == "nether"
+					or next(areas:getAreasAtPos(p)) ~= nil
+				for _,i in ipairs(excluded) do
+					if i == n then excluding = true end
+				end
+				--if p.y < -19600 and including and n:split(":")[1] == "nether" then
+				if excluding then
+					return
+				end
+				if n == "default:chest" then
+					meta = minetest.get_meta(p)
+					inv  = meta:get_inventory()
+					for i = 1,32 do
+						m_stack = inv:get_stack("main",i)
+						obj = minetest.add_item(pos,m_stack)
+						if obj then
+							obj:setvelocity({x=math.random(-2,1), y=7, z=math.random(-2,1)})
+						end
+					end
+				end
+				if minetest.registered_nodes[n].groups.flammable or math.random(1, 100) <= 30 then
+					minetest.set_node(p, {name="fire:basic_flame"})
+				else
+					minetest.remove_node(p)
+				end
+				if n == "doors:door_wood_b_1" then
+					minetest.remove_node({x=p.x,y=p.y+1,z=p.z})
+				elseif n == "doors:door_wood_t_1" then
+					minetest.remove_node({x=p.x,y=p.y-1,z=p.z})
+				end
 			end
 		end
 		vi = vi + 1
diff --git a/mods/mobs/dungeonmaster.lua-old b/mods/mobs/dungeonmaster.lua-old
deleted file mode 100755
index 4d403522..00000000
--- a/mods/mobs/dungeonmaster.lua-old
+++ /dev/null
@@ -1,139 +0,0 @@
-
--- Dungeon Master by PilzAdam
-
--- Node which cannot be destroyed by DungeonMasters' fireballs
-local excluded = {"nether:netherrack","default:obsidian_glass","default:obsidian", "default:obsidian_cooled", "default:bedrock", "doors:door_steel_b_1", "doors:door_steel_t_1", "doors:door_steel_b_2", "doors:door_steel_t_2","default:chest_locked"}
-
-mobs:register_mob("mobs:dungeon_master", {
-	-- animal, monster, npc, barbarian
-	type = "monster",
-	-- aggressive, shoots fireballs at player, deal 13 damages
-	passive = false,
-	damage = 13,
-	attack_type = "shoot",
-	shoot_interval = 2.5,
-	arrow = "mobs:fireball",
-	shoot_offset = 0,
-	-- health & armor
-	hp_min = 50,
-	hp_max = 60,
-	armor = 60,
-	-- textures and model
-	collisionbox = {-0.7, -0.01, -0.7, 0.7, 2.6, 0.7},
-	visual = "mesh",
-	mesh = "mobs_dungeon_master.x",
-	textures = {
-		{"mobs_dungeon_master.png"},
-		{"mobs_dungeon_master_cobblestone.png"},
-		{"mobs_dungeon_master_strangewhite.png"},
-	},
-	visual_size = {x=8, y=8},
-	blood_texture = "mobs_blood.png",
-	-- sounds
-	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_dungeonmaster",
-		attack = "mobs_fireball",
-	},
-	-- speed and jump
-	walk_velocity = 1,
-	run_velocity = 2,
-	jump = false,
-	view_range = 16,
-	-- drops mese or diamond when dead
-	drops = {
-		{name = "default:mese_crystal_fragment",
-		chance = 1, min = 1, max = 3,},
-		{name = "default:diamond",
-		chance = 5, min = 1, max = 3,},
-		{name = "default:mese_crystal",
-		chance = 2, min = 1, max = 3,},
-		{name = "default:diamond_block",
-		chance = 30, min = 1, max = 1,},
-		{name = "maptools:gold_coin",
-		chance = 15, min = 1, max = 2,},
-		{name = "maptools:silver_coin",
-		chance = 1, min = 2, max = 10,},
-	},
-	-- damaged by
-	water_damage = 1,
-	lava_damage = 1,
-	light_damage = 0,
-	-- model animation
-	animation = {
-		stand_start = 0,		stand_end = 19,
-		walk_start = 20,		walk_end = 35,
-		punch_start = 36,		punch_end = 48,
-		speed_normal = 15,		speed_run = 15,
-	},
-})
--- spawn on stone between 20 and -1 light, 1 in 7000 chance, 1 dungeon master in area starting at -100 and below
-mobs:register_spawn("mobs:dungeon_master", {"default:stone, nether:netherrack"}, 20, -1, 7000, 1, -100)
--- register spawn egg
-mobs:register_egg("mobs:dungeon_master", "Dungeon Master", "fire_basic_flame.png", 1)
-
--- fireball (weapon)
-mobs:register_arrow("mobs:fireball", {
-	visual = "sprite",
-	visual_size = {x=1, y=1},
-	textures = {"mobs_fireball.png"},
-	velocity = 6,
-
-	-- direct hit, no fire... just plenty of pain
-	hit_player = function(self, player)
-		player:punch(self.object, 1.0,  {
-			full_punch_interval=1.0,
-			damage_groups = {fleshy=13},
-		}, 0)
-	end,
-
-	hit_mob = function(self, player)
-		player:punch(self.object, 1.0,  {
-			full_punch_interval=1.0,
-			damage_groups = {fleshy=8},
-		}, 0)
-	end,
-
-	-- node hit, bursts into flame (cannot blast through obsidian or protection redo mod items)
-	hit_node = function(self, pos, node)
-		for dx=-1,1 do
-			for dy=-1,1 do
-				for dz=-1,1 do
-					local p = {x=pos.x+dx, y=pos.y+dy, z=pos.z+dz}
-					local n = minetest.get_node(p).name
-					local excluding = minetest.get_item_group(n, "unbreakable") == 1
-						or n:split(":")[1] == "nether"
-						or next(areas:getAreasAtPos(p)) ~= nil
-					for _,i in ipairs(excluded) do
-						if i == n then excluding = true end
-					end
-					--if p.y < -19600 and including and n:split(":")[1] == "nether" then
-					if excluding then
-						return
-					end
-					if n == "default:chest" then
-						meta = minetest.get_meta(p)
-						inv  = meta:get_inventory()
-						for i = 1,32 do
-							m_stack = inv:get_stack("main",i)
-							obj = minetest.add_item(pos,m_stack)
-							if obj then
-								obj:setvelocity({x=math.random(-2,1), y=7, z=math.random(-2,1)})
-							end
-						end
-					end
-					if minetest.registered_nodes[n].groups.flammable or math.random(1, 100) <= 30 then
-						minetest.set_node(p, {name="fire:basic_flame"})
-					else
-						minetest.set_node(p, {name="air"})
-					end
-					if n == "doors:door_wood_b_1" then
-						minetest.remove_node({x=p.x,y=p.y+1,z=p.z})
-					elseif n == "doors:door_wood_t_1" then
-						minetest.remove_node({x=p.x,y=p.y-1,z=p.z})
-					end
-				end
-			end
-		end
-	end
-})
diff --git a/mods/mobs/stonemonster.lua b/mods/mobs/stonemonster.lua
index 8a70288d..7f175ba6 100755
--- a/mods/mobs/stonemonster.lua
+++ b/mods/mobs/stonemonster.lua
@@ -46,7 +46,7 @@ mobs:register_mob("mobs:stone_monster", {
 	},
 	-- damaged by
 	water_damage = 0,
-	lava_damage = 0
+	lava_damage = 0,
 	light_damage = 0,
 	-- model animation
 	animation = {