diff --git a/cdtweaks/languages/english/weidu.tra b/cdtweaks/languages/english/weidu.tra
index 06daf4e..5a29c16 100644
--- a/cdtweaks/languages/english/weidu.tra
+++ b/cdtweaks/languages/english/weidu.tra
@@ -141,6 +141,8 @@ The uninstall messages above are normal and expected.
 @25400 = ~Moderately decreased brightness~
 @25500 = ~Original color~
 
+@26000 = "Hide VFX from invisible enemies [Luke, EEex]"
+
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////                                                  \\\\\
diff --git a/cdtweaks/languages/italian/weidu.tra b/cdtweaks/languages/italian/weidu.tra
index 738ea95..282c194 100644
--- a/cdtweaks/languages/italian/weidu.tra
+++ b/cdtweaks/languages/italian/weidu.tra
@@ -117,6 +117,8 @@ o rimpiazzata da - un'altra facente parte di uno dei mods installati.~
 
 @22000 = ~Sovrapposizioni migliorate per i giocatori daltonici [Fouinto]~ 
 
+@26000 = "Nascondi gli effetti visivi dai nemici invisibili [Luke, EEex]"
+
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////                                                  \\\\\
diff --git a/cdtweaks/lib/comp_260.tpa b/cdtweaks/lib/comp_260.tpa
new file mode 100644
index 0000000..3c8eb4d
--- /dev/null
+++ b/cdtweaks/lib/comp_260.tpa
@@ -0,0 +1,15 @@
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////                                                            \\\\\
+///// Hide VFX from invisible enemies                            \\\\\
+/////                                                            \\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+
+WITH_SCOPE BEGIN
+  INCLUDE "cdtweaks\luke\misc.tph"
+  //
+  INCLUDE "cdtweaks\lib\hide_vfx.tph"
+  //
+  LAF "HIDE_VFX" END
+END
\ No newline at end of file
diff --git a/cdtweaks/lib/hide_vfx.tph b/cdtweaks/lib/hide_vfx.tph
new file mode 100644
index 0000000..83019c8
--- /dev/null
+++ b/cdtweaks/lib/hide_vfx.tph
@@ -0,0 +1,4 @@
+DEFINE_ACTION_FUNCTION "HIDE_VFX"
+BEGIN
+	LAF "APPEND_LUA_FUNCTION" STR_VAR "description" = "Misc Tweaks" "sourceFileSpec" = "cdtweaks\luke\lua\tweaks\hide_vfx.lua" "destRes" = "m_gttwks" END
+END
\ No newline at end of file
diff --git a/cdtweaks/luke/lua/tweaks/hide_vfx.lua b/cdtweaks/luke/lua/tweaks/hide_vfx.lua
new file mode 100644
index 0000000..5edde03
--- /dev/null
+++ b/cdtweaks/luke/lua/tweaks/hide_vfx.lua
@@ -0,0 +1,154 @@
+--[[
++---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| cdtweaks: hide op215 and hardcoded animations played by opcodes 153, 155, 156, 201, 204, 205, 223, 226, 259, 197, 198, 200, 202, 203, 207, 227, 228, 299 from invisible enemies |
++---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+--]]
+
+function GTHIDEAN(op403CGameEffect, CGameEffect, CGameSprite)
+	local spriteActiveStats = EEex_Sprite_GetActiveStats(CGameSprite)
+	--
+	local hideVFX = function(effect)
+		if effect.m_effectId == 0xD7 then -- Play visual effect (215)
+			effect.m_res2:set(effect.m_res:get()) -- store it for later restoration
+			effect.m_res:set("") -- blank VFX
+		elseif (effect.m_effectId == 0x99 -- Sanctuary (153)
+			or effect.m_effectId == 0x9B -- Minor globe overlay (155)
+			or effect.m_effectId == 0x9C) -- Protection from normal missiles overlay (156)
+		then
+			effect.m_effectAmount = effect.m_dWFlags -- store it for later restoration
+			effect.m_res2:set(effect.m_res:get()) -- store it for later restoration
+			effect.m_res:set("") -- blank VFX
+			effect.m_dWFlags = 1 -- mode: custom
+		end
+	end
+	-- if invisible, hide incoming VFX
+	if EEex_IsBitSet(spriteActiveStats.m_generalState, 0x4) then
+		if CGameEffect.m_effectId == 0xD7 then -- Play visual effect (215)
+			CGameSprite:setLocalInt("gtHideVFXIfInvisible", 1)
+			--
+			CGameEffect.m_res2:set(CGameEffect.m_res:get()) -- store it for later restoration
+			CGameEffect.m_res:set("") -- blank VFX
+		elseif (CGameEffect.m_effectId == 0x99 -- Sanctuary (153)
+			or CGameEffect.m_effectId == 0x9B -- Minor globe overlay (155)
+			or CGameEffect.m_effectId == 0x9C) -- Protection from normal missiles overlay (156)
+		then
+			CGameSprite:setLocalInt("gtHideVFXIfInvisible", 1)
+			--
+			CGameEffect.m_effectAmount = CGameEffect.m_dWFlags -- store it for later restoration
+			CGameEffect.m_res2:set(CGameEffect.m_res:get()) -- store it for later restoration
+			CGameEffect.m_res:set("") -- blank VFX
+			CGameEffect.m_dWFlags = 1 -- mode: custom
+		end
+	else
+		-- if about to turn invisible, hide existing VFX
+		if CGameEffect.m_effectId == 0x14 and CGameEffect.m_dWFlags == 0 then -- Invisibility (20)
+			CGameSprite:setLocalInt("gtHideVFXIfInvisible", 1)
+			--
+			EEex_Utility_IterateCPtrList(CGameSprite.m_timedEffectList, hideVFX)
+			EEex_Utility_IterateCPtrList(CGameSprite.m_equipedEffectList, hideVFX)
+			-- suppress hardcoded animations
+			EEex_GameObject_ApplyEffect(CGameSprite,
+			{
+				["effectID"] = 0x123, -- Disable visual effects (291)
+				["dwFlags"] = 1,
+				["durationType"] = CGameEffect.m_durationType,
+				["duration"] = CGameEffect.m_duration,
+				["m_sourceRes"] = "GTRMV291",
+				["sourceID"] = CGameSprite.m_id,
+				["sourceTarget"] = CGameSprite.m_id,
+			})
+		end
+	end
+end
+
+-- restore VFX if no longer invisible --
+
+EEex_Opcode_AddListsResolvedListener(function(sprite)
+	-- sanity check
+	if not EEex_GameObject_IsSprite(sprite) then
+		return
+	end
+	--
+	local restoreVFX = function(effect)
+		if effect.m_effectId == 0xD7 then -- Play visual effect (215)
+			effect.m_res:set(effect.m_res2:get())
+			effect.m_res2:set("")
+		elseif (effect.m_effectId == 0x99 -- Sanctuary (153)
+			or effect.m_effectId == 0x9B -- Minor globe overlay (155)
+			or effect.m_effectId == 0x9C) -- Protection from normal missiles overlay (156)
+		then
+			effect.m_dWFlags = effect.m_effectAmount
+			effect.m_res:set(effect.m_res2:get())
+			effect.m_res2:set("")
+			effect.m_effectAmount = 0
+		end
+	end
+	-- Check creature's state
+	-- since ``EEex_Opcode_AddListsResolvedListener`` is running after the effect lists have been evaluated, ``m_bonusStats`` has already been added to ``m_derivedStats`` by the engine
+	local spriteGeneralState = sprite.m_derivedStats.m_generalState
+	--
+	if sprite:getLocalInt("gtHideVFXIfInvisible") == 1 and EEex_IsBitUnset(spriteGeneralState, 0x4) then
+		sprite:setLocalInt("gtHideVFXIfInvisible", 0)
+		-- remove op291
+		sprite:applyEffect({
+			["effectID"] = 321, -- Remove effects by resource
+			["res"] = "GTRMV291",
+			["sourceID"] = sprite.m_id,
+			["sourceTarget"] = sprite.m_id,
+		})
+		--
+		EEex_Utility_IterateCPtrList(sprite.m_timedEffectList, restoreVFX)
+		EEex_Utility_IterateCPtrList(sprite.m_equipedEffectList, restoreVFX)
+	end
+end)
+
+--
+
+EEex_Opcode_AddListsResolvedListener(function(sprite)
+	-- sanity check
+	if not EEex_GameObject_IsSprite(sprite) then
+		return
+	end
+	-- internal function that applies the actual condition
+	local apply = function()
+		-- Mark the creature as 'condition applied'
+		sprite:setLocalInt("cdtweaksHideAnimations", 1)
+		--
+		sprite:applyEffect({
+			["effectID"] = 321, -- Remove effects by resource
+			["res"] = "GTHIDEAN",
+			["sourceID"] = sprite.m_id,
+			["sourceTarget"] = sprite.m_id,
+		})
+		sprite:applyEffect({
+			["effectID"] = 403, -- Screen effects
+			["durationType"] = 9,
+			["res"] = "GTHIDEAN", -- lua function
+			["m_sourceRes"] = "GTHIDEAN",
+			["sourceID"] = sprite.m_id,
+			["sourceTarget"] = sprite.m_id,
+		})
+	end
+	-- Check creature's EA
+	local applyCondition = sprite.m_typeAI.m_EnemyAlly > 200 -- EVILCUTOFF
+	--
+	if sprite:getLocalInt("cdtweaksHideAnimations") == 0 then
+		if applyCondition then
+			apply()
+		end
+	else
+		if applyCondition then
+			-- do nothing
+		else
+			-- Mark the creature as 'condition removed'
+			sprite:setLocalInt("cdtweaksHideAnimations", 0)
+			--
+			sprite:applyEffect({
+				["effectID"] = 321, -- Remove effects by resource
+				["res"] = "GTHIDEAN",
+				["sourceID"] = sprite.m_id,
+				["sourceTarget"] = sprite.m_id,
+			})
+		end
+	end
+end)
diff --git a/cdtweaks/readme-cdtweaks.html b/cdtweaks/readme-cdtweaks.html
index 84c933f..850864b 100644
--- a/cdtweaks/readme-cdtweaks.html
+++ b/cdtweaks/readme-cdtweaks.html
@@ -221,6 +221,10 @@ <h3> <a id="contents_cosmetic" name="contents_cosmetic"></a>Cosmetic Changes </h
         <li> <em>Moderately decreased brightness:</em> Suitable for brighter GUIs.</li>
         <li> <em>Original color:</em> Looks more natural but may be very dark or bright in some instances.</li>
       </ul>
+
+      <p> <strong>Hide VFX from invisible enemies [Luke]</strong><br />
+        <em><abbr title="Baldur's Gate: Enhanced Edition">EEex</abbr></em></p>
+      <p>This component simply makes sure that VFX are hidden from invisible enemies (in so doing, the player will no longer be able to "see" invisible mages just because they previously cast something like Fire Shield or Globe of Invulnerability).</p>
     </div>
     <div class="ribbon_rectangle_h3">
       <h3> <a id="contents_content" name="contents_content"></a>Content Changes </h3>
diff --git a/cdtweaks/setup-cdtweaks.tp2 b/cdtweaks/setup-cdtweaks.tp2
index 5e97fb6..76ae869 100644
--- a/cdtweaks/setup-cdtweaks.tp2
+++ b/cdtweaks/setup-cdtweaks.tp2
@@ -669,6 +669,20 @@ REQUIRE_PREDICATE GAME_IS ~bgee bg2ee eet iwdee~ @25
 REQUIRE_PREDICATE FILE_EXISTS_IN_GAME ~ui.menu~ @25
 LABEL ~cd_tweaks_colorize_npc_names_color_original~
 
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////                                                            \\\\\
+///// Hide VFX from invisible enemies                            \\\\\
+/////                                                            \\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
+
+BEGIN @26000 DESIGNATED 260
+GROUP @11
+REQUIRE_PREDICATE GAME_IS ~bgee bg2ee eet iwdee~ @25
+REQUIRE_PREDICATE MOD_IS_INSTALLED ~EEex.tp2~ 0 @29
+LABEL ~cd_tweaks_hide_vfx_from_invisible_enemies~
+
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\/////\\\\\
 /////                                                  \\\\\