diff --git a/scripts/zones/Bostaunieux_Oubliette/IDs.lua b/scripts/zones/Bostaunieux_Oubliette/IDs.lua
index 902a00e6eda..24dd1c81503 100644
--- a/scripts/zones/Bostaunieux_Oubliette/IDs.lua
+++ b/scripts/zones/Bostaunieux_Oubliette/IDs.lua
@@ -38,37 +38,14 @@ zones[xi.zone.BOSTAUNIEUX_OUBLIETTE] =
     },
     mob =
     {
-        SEWER_SYRUP_PH          =
-        {
-            [17461305] = 17461307, -- -19.000 1.000 -173.000
-            [17461306] = 17461307, -- -20.000 1.000 -148.000
-        },
-        SHII_PH                 =
-        {
-            [17461311] = 17461315, -- -59.000 0.941 -149.000
-            [17461334] = 17461315, -- -64.000 -0.500 -144.000
-            [17461277] = 17461315, -- -65.000 -1.000 -137.000
-            [17461309] = 17461315, -- -64.000 0.950 -132.000
-            [17461312] = 17461315, -- -53.000 -0.500 -137.000
-            [17461308] = 17461315, -- -57.000 0.998 -135.000
-        },
-        ARIOCH_PH               =
-        {
-            [17461322] = 17461433, -- -259 0.489 -188
-        },
-        MANES_PH                =
-        {
-            [17461469] = 17461471,
-            [17461470] = 17461471,
-            [17461476] = 17461471,
-            [17461477] = 17461471,
-        },
-        DREXERION_THE_CONDEMNED = 17461338,
-        PHANDURON_THE_CONDEMNED = 17461343,
-        BLOODSUCKER             = 17461478,
-        BODACH                  = 17461479,
-        MANES                   = 17461471,
-        SHII                    = 17461315,
+        ARIOCH                  = GetFirstID('Arioch'),
+        BLOODSUCKER             = GetTableOfIDs('Bloodsucker')[42], -- Last bloodsucker in the zone
+        BODACH                  = GetFirstID('Bodach'),
+        DREXERION_THE_CONDEMNED = GetFirstID('Drexerion_the_Condemned'),
+        MANES                   = GetFirstID('Manes'),
+        PHANDURON_THE_CONDEMNED = GetFirstID('Phanduron_the_Condemned'),
+        SEWER_SYRUP             = GetFirstID('Sewer_Syrup'),
+        SHII                    = GetFirstID('Shii'),
     },
     npc =
     {
diff --git a/scripts/zones/Bostaunieux_Oubliette/mobs/Garm.lua b/scripts/zones/Bostaunieux_Oubliette/mobs/Garm.lua
index 59df6c68ba5..071eb59596e 100644
--- a/scripts/zones/Bostaunieux_Oubliette/mobs/Garm.lua
+++ b/scripts/zones/Bostaunieux_Oubliette/mobs/Garm.lua
@@ -7,12 +7,22 @@ local ID = zones[xi.zone.BOSTAUNIEUX_OUBLIETTE]
 -----------------------------------
 local entity = {}
 
+local shiiPHTable =
+{
+    [ID.mob.SHII - 38] = ID.mob.SHII, -- -65.000 -1.000 -137.000
+    [ID.mob.SHII - 7]  = ID.mob.SHII, -- -57.000 0.998 -135.000
+    [ID.mob.SHII - 6]  = ID.mob.SHII, -- -64.000 0.950 -132.000
+    [ID.mob.SHII - 4]  = ID.mob.SHII, -- -59.000 0.941 -149.000
+    [ID.mob.SHII - 3]  = ID.mob.SHII, -- -53.000 -0.500 -137.000
+    [ID.mob.SHII + 19] = ID.mob.SHII, -- -64.000 -0.500 -144.000
+}
+
 entity.onMobDeath = function(mob, player, optParams)
     xi.regime.checkRegime(player, mob, 612, 1, xi.regime.type.GROUNDS)
 end
 
 entity.onMobDespawn = function(mob)
-    xi.mob.phOnDespawn(mob, ID.mob.SHII_PH, 5, 3600) -- 1 hour
+    xi.mob.phOnDespawn(mob, shiiPHTable, 5, 3600) -- 1 hour
 end
 
 return entity
diff --git a/scripts/zones/Bostaunieux_Oubliette/mobs/Gespenst.lua b/scripts/zones/Bostaunieux_Oubliette/mobs/Gespenst.lua
index 2b3185d8a96..c17f57a466e 100644
--- a/scripts/zones/Bostaunieux_Oubliette/mobs/Gespenst.lua
+++ b/scripts/zones/Bostaunieux_Oubliette/mobs/Gespenst.lua
@@ -7,11 +7,19 @@ local ID = zones[xi.zone.BOSTAUNIEUX_OUBLIETTE]
 -----------------------------------
 local entity = {}
 
+local manesPHTable =
+{
+    [ID.mob.MANES - 2] = ID.mob.MANES,
+    [ID.mob.MANES - 1] = ID.mob.MANES,
+    [ID.mob.MANES + 5] = ID.mob.MANES,
+    [ID.mob.MANES + 6] = ID.mob.MANES,
+}
+
 entity.onMobDeath = function(mob, player, optParams)
 end
 
 entity.onMobDespawn = function(mob)
-    xi.mob.phOnDespawn(mob, ID.mob.MANES_PH, 5, 3600) -- 1 hour
+    xi.mob.phOnDespawn(mob, manesPHTable, 5, 3600) -- 1 hour
 end
 
 return entity
diff --git a/scripts/zones/Bostaunieux_Oubliette/mobs/Mousse.lua b/scripts/zones/Bostaunieux_Oubliette/mobs/Mousse.lua
index 6f4689f91ad..577584be631 100644
--- a/scripts/zones/Bostaunieux_Oubliette/mobs/Mousse.lua
+++ b/scripts/zones/Bostaunieux_Oubliette/mobs/Mousse.lua
@@ -7,11 +7,17 @@ local ID = zones[xi.zone.BOSTAUNIEUX_OUBLIETTE]
 -----------------------------------
 local entity = {}
 
+local sewerSyrupPHTable =
+{
+    [ID.mob.SEWER_SYRUP - 2] = ID.mob.SEWER_SYRUP, -- -19.000 1.000 -173.000
+    [ID.mob.SEWER_SYRUP - 1] = ID.mob.SEWER_SYRUP, -- -20.000 1.000 -148.000
+}
+
 entity.onMobDeath = function(mob, player, optParams)
 end
 
 entity.onMobDespawn = function(mob)
-    xi.mob.phOnDespawn(mob, ID.mob.SEWER_SYRUP_PH, 10, 7200) -- 2 hour minimum
+    xi.mob.phOnDespawn(mob, sewerSyrupPHTable, 10, 7200) -- 2 hour minimum
 end
 
 return entity
diff --git a/scripts/zones/Bostaunieux_Oubliette/mobs/Werebat.lua b/scripts/zones/Bostaunieux_Oubliette/mobs/Werebat.lua
index 99777b8425d..5394ba9ff8e 100644
--- a/scripts/zones/Bostaunieux_Oubliette/mobs/Werebat.lua
+++ b/scripts/zones/Bostaunieux_Oubliette/mobs/Werebat.lua
@@ -7,12 +7,17 @@ local ID = zones[xi.zone.BOSTAUNIEUX_OUBLIETTE]
 -----------------------------------
 local entity = {}
 
+local ariochPHTable =
+{
+    [ID.mob.ARIOCH - 11] = ID.mob.ARIOCH, -- -259 0.489 -188
+}
+
 entity.onMobDeath = function(mob, player, optParams)
     xi.regime.checkRegime(player, mob, 611, 2, xi.regime.type.GROUNDS)
 end
 
 entity.onMobDespawn = function(mob)
-    xi.mob.phOnDespawn(mob, ID.mob.ARIOCH_PH, 10, 3600) -- 1 hour
+    xi.mob.phOnDespawn(mob, ariochPHTable, 10, 3600) -- 1 hour
 end
 
 return entity