diff --git a/code/__DEFINES/access.dm b/code/__DEFINES/access.dm
index b139ef6713b..7f5487651f9 100644
--- a/code/__DEFINES/access.dm
+++ b/code/__DEFINES/access.dm
@@ -199,6 +199,8 @@
 #define ACCESS_BLOODCULT "bloodcult"
 /// HUNTERS
 #define ACCESS_HUNTER "hunter"
+/// HERETIC
+#define ACCESS_HERETIC "heretic"
 
 /// - - - MISC - - -
 	// These don't really fit anywhere else
diff --git a/code/modules/antagonists/heretic/items/keyring.dm b/code/modules/antagonists/heretic/items/keyring.dm
index 61dbef21dc1..21bd99846e5 100644
--- a/code/modules/antagonists/heretic/items/keyring.dm
+++ b/code/modules/antagonists/heretic/items/keyring.dm
@@ -95,6 +95,7 @@
 
 ///An ID card capable of shapeshifting to other IDs given by the Key Keepers Burden knowledge
 /obj/item/card/id/advanced/heretic
+	access = list(ACCESS_HERETIC)
 	///List of IDs this card consumed
 	var/list/obj/item/card/id/fused_ids = list()
 	///The first portal in the portal pair, so we can clear it later
diff --git a/code/modules/antagonists/heretic/knowledge/side_knowledge/tier_one.dm b/code/modules/antagonists/heretic/knowledge/side_knowledge/tier_one.dm
index e8a3f9b4d67..3706408b464 100644
--- a/code/modules/antagonists/heretic/knowledge/side_knowledge/tier_one.dm
+++ b/code/modules/antagonists/heretic/knowledge/side_knowledge/tier_one.dm
@@ -100,3 +100,136 @@
 	research_tree_icon_path = 'icons/obj/economy.dmi'
 	research_tree_icon_state = "coin_heretic"
 	drafting_tier = 1
+
+/**
+ * This allows heretics to choose if they want to rush all the influences and take them stealthily, or
+ * Construct a codex and take what's left with more points.
+ * Another downside to having the book is strip searches, which means that it's not just a free nab, at least until you get exposed - and when you do, you'll probably need the faster drawing speed.
+ * Overall, it's a tradeoff between speed and stealth or power.
+ */
+/datum/heretic_knowledge/codex_cicatrix
+	name = "Codex Cicatrix"
+	desc = "Allows you to transmute a book, any pen, and your pick from any carcass (animal or human), leather, or hide to create a Codex Cicatrix. \
+		The Codex Cicatrix can be used when draining influences to gain additional knowledge, but comes at greater risk of being noticed. \
+		It can also be used to draw and remove transmutation runes easier, and as a spell focus in a pinch."
+	gain_text = "The occult leaves fragments of knowledge and power anywhere and everywhere. The Codex Cicatrix is one such example. \
+		Within the leather-bound faces and age old pages, a path into the Mansus is revealed."
+	required_atoms = list(
+		list(/obj/item/toy/eldritch_book, /obj/item/book) = 1,
+		/obj/item/pen = 1,
+		list(/mob/living, /obj/item/stack/sheet/leather, /obj/item/stack/sheet/animalhide, /obj/item/food/deadmouse) = 1,
+	)
+	result_atoms = list(/obj/item/codex_cicatrix)
+	cost = 1
+	priority = MAX_KNOWLEDGE_PRIORITY - 4
+	drafting_tier = 1
+	is_shop_only = TRUE
+	research_tree_icon_path = 'icons/obj/antags/eldritch.dmi'
+	research_tree_icon_state = "book"
+
+	var/static/list/non_mob_bindings = typecacheof(list(
+		/obj/item/stack/sheet/leather,
+		/obj/item/stack/sheet/animalhide,
+		/obj/item/food/deadmouse,
+	))
+
+/datum/heretic_knowledge/codex_cicatrix/recipe_snowflake_check(mob/living/user, list/atoms, list/selected_atoms, turf/loc)
+	. = ..()
+	if(!.)
+		return FALSE
+
+	for(var/thingy in atoms)
+		if(is_type_in_typecache(thingy, non_mob_bindings))
+			selected_atoms += thingy
+			return TRUE
+		else if(isliving(thingy))
+			var/mob/living/body = thingy
+			if(body.stat != DEAD)
+				continue
+			selected_atoms += body
+			return TRUE
+	return FALSE
+
+/datum/heretic_knowledge/codex_cicatrix/cleanup_atoms(list/selected_atoms)
+	var/mob/living/body = locate() in selected_atoms
+	if(!body)
+		return ..()
+	// A golem or an android doesn't have skin!
+	var/exterior_text = "skin"
+	// If carbon, it's the limb. If not, it's the body.
+	var/atom/movable/ripped_thing = body
+
+	// We will check if it's a carbon's body.
+	// If it is, we will damage a random bodypart, and check that bodypart for its body type, to select between 'skin' or 'exterior'.
+	if(iscarbon(body))
+		var/mob/living/carbon/carbody = body
+		var/obj/item/bodypart/bodypart = pick(carbody.get_bodyparts())
+		ripped_thing = bodypart
+
+		carbody.apply_damage(25, BRUTE, bodypart, sharpness = SHARP_EDGED)
+		if(!(bodypart.bodytype & BODYTYPE_ORGANIC))
+			exterior_text = "exterior"
+	else
+		body.apply_damage(25, BRUTE, sharpness = SHARP_EDGED)
+		// If it is not a carbon mob, we will just check biotypes and damage it directly.
+		if(body.mob_biotypes & (MOB_MINERAL|MOB_ROBOTIC))
+			exterior_text = "exterior"
+
+	// Procure book for flavor text. This is why we call parent at the end.
+	var/obj/item/book/le_book = locate() in selected_atoms
+	if(!le_book)
+		stack_trace("Somehow, no book in codex cicatrix selected atoms! [english_list(selected_atoms)]")
+	playsound(body, 'sound/items/poster/poster_ripped.ogg', 100, TRUE)
+	body.do_jitter_animation()
+	body.visible_message(span_danger("An awful ripping sound is heard as [ripped_thing]'s [exterior_text] is ripped straight out, wrapping around [le_book || "the book"], turning into an eldritch shade of blue!"))
+	return ..()
+
+/**
+ * Warren King's Welcome
+ * Offers an alternative way besides stealing an ID or visiting the HoP to gain access to maintenance
+ * Additionally changes all nearby airlock's access's to ACCESS_HERETIC
+ */
+/datum/heretic_knowledge/bookworm
+	name = "Warren King's Welcome"
+	desc = "Allows you to transmute 10 cable pieces, a piece of paper, and a multitool to brand nearby ID cards and airlocks. \
+		Branded ID cards will gain access to maintenance, external airlocks, as well to branded airlocks. \
+		Branded airlocks will only be accessible by those with a branded ID card."
+	gain_text = "Gnawed into vicious-stained fingerbones, my grim invitation snaps my nauseous and clouded mind towards the heavy-set door. \
+		Slowly, the light dances between a crawling darkness, blanketing the fetid promenade with infinite machinations. \
+		But the King will soon take his pound of flesh. Even here, the taxman takes their cut. For there are a thousands mouths to feed."
+	required_atoms = list(
+		/obj/item/stack/cable_coil = 10,
+		/obj/item/paper = 1,
+		/obj/item/multitool = 1,
+	)
+	cost = 1
+	priority = MAX_KNOWLEDGE_PRIORITY - 3
+	drafting_tier = 1
+	research_tree_icon_path = 'icons/obj/card.dmi'
+	research_tree_icon_state = "eldritch"
+
+/datum/heretic_knowledge/bookworm/recipe_snowflake_check(mob/living/user, list/atoms, list/selected_atoms, turf/loc)
+	. = ..()
+	for(var/obj/item/card/id/used_id in atoms)
+		selected_atoms += used_id
+	var/obj/item/card/user_card = user.get_idcard(hand_first = TRUE)
+	if(user_card)
+		selected_atoms += user_card
+
+/datum/heretic_knowledge/bookworm/on_finished_recipe(mob/living/user, list/selected_atoms, turf/loc)
+	. = ..()
+	for(var/obj/item/card/id/improved_id in selected_atoms)
+		improved_id.add_access(list(ACCESS_MAINT_TUNNELS, ACCESS_EXTERNAL_AIRLOCKS, ACCESS_HERETIC), mode = FORCE_ADD_ALL)
+		selected_atoms -= improved_id
+	for(var/obj/machinery/door/airlock/door in view(7, loc))
+		door.req_one_access = null
+		door.req_access = list(ACCESS_HERETIC)
+		door.wires?.cut(WIRE_AI)
+		new /obj/effect/temp_visual/eldritch_sparks(door.loc)
+		var/obj/effect/light_emitter/light = new(door.loc)
+		light.set_light(1.75, 1.5, COLOR_PUCE)
+		QDEL_IN(light, 1 SECONDS)
+		playsound(door, 'sound/effects/magic.ogg', 20, vary = TRUE, extrarange = SILENCED_SOUND_EXTRARANGE, ignore_walls = FALSE)
+		playsound(door, SFX_SPARKS, 33, vary = TRUE, extrarange = SILENCED_SOUND_EXTRARANGE, ignore_walls = FALSE)
+
+	return TRUE
diff --git a/code/modules/antagonists/heretic/knowledge/starting_lore.dm b/code/modules/antagonists/heretic/knowledge/starting_lore.dm
index 6647ee086bc..4105a4d08c9 100644
--- a/code/modules/antagonists/heretic/knowledge/starting_lore.dm
+++ b/code/modules/antagonists/heretic/knowledge/starting_lore.dm
@@ -200,84 +200,6 @@ GLOBAL_LIST_INIT(heretic_start_knowledge, initialize_starting_knowledge())
 	cost = 0
 	is_starting_knowledge = TRUE
 
-/**
- * Codex Cicatrixi is available at the start:
- * This allows heretics to choose if they want to rush all the influences and take them stealthily, or
- * Construct a codex and take what's left with more points.
- * Another downside to having the book is strip searches, which means that it's not just a free nab, at least until you get exposed - and when you do, you'll probably need the faster drawing speed.
- * Overall, it's a tradeoff between speed and stealth or power.
- */
-/datum/heretic_knowledge/codex_cicatrix
-	name = "Codex Cicatrix"
-	desc = "Allows you to transmute a book, any pen, and your pick from any carcass (animal or human), leather, or hide to create a Codex Cicatrix. \
-		The Codex Cicatrix can be used when draining influences to gain additional knowledge, but comes at greater risk of being noticed. \
-		It can also be used to draw and remove transmutation runes easier, and as a spell focus in a pinch."
-	gain_text = "The occult leaves fragments of knowledge and power anywhere and everywhere. The Codex Cicatrix is one such example. \
-		Within the leather-bound faces and age old pages, a path into the Mansus is revealed."
-	required_atoms = list(
-		list(/obj/item/toy/eldritch_book, /obj/item/book) = 1,
-		/obj/item/pen = 1,
-		list(/mob/living, /obj/item/stack/sheet/leather, /obj/item/stack/sheet/animalhide, /obj/item/food/deadmouse) = 1,
-	)
-	result_atoms = list(/obj/item/codex_cicatrix)
-	cost = 1
-	is_starting_knowledge = TRUE
-	priority = MAX_KNOWLEDGE_PRIORITY - 4 // Least priority out of the starting knowledges, as it's an optional boon.
-	var/static/list/non_mob_bindings = typecacheof(list(/obj/item/stack/sheet/leather, /obj/item/stack/sheet/animalhide, /obj/item/food/deadmouse))
-	research_tree_icon_path = 'icons/obj/antags/eldritch.dmi'
-	research_tree_icon_state = "book"
-
-/datum/heretic_knowledge/codex_cicatrix/recipe_snowflake_check(mob/living/user, list/atoms, list/selected_atoms, turf/loc)
-	. = ..()
-	if(!.)
-		return FALSE
-
-	for(var/thingy in atoms)
-		if(is_type_in_typecache(thingy, non_mob_bindings))
-			selected_atoms += thingy
-			return TRUE
-		else if(isliving(thingy))
-			var/mob/living/body = thingy
-			if(body.stat != DEAD)
-				continue
-			selected_atoms += body
-			return TRUE
-	return FALSE
-
-/datum/heretic_knowledge/codex_cicatrix/cleanup_atoms(list/selected_atoms)
-	var/mob/living/body = locate() in selected_atoms
-	if(!body)
-		return ..()
-	// A golem or an android doesn't have skin!
-	var/exterior_text = "skin"
-	// If carbon, it's the limb. If not, it's the body.
-	var/atom/movable/ripped_thing = body
-
-	// We will check if it's a carbon's body.
-	// If it is, we will damage a random bodypart, and check that bodypart for its body type, to select between 'skin' or 'exterior'.
-	if(iscarbon(body))
-		var/mob/living/carbon/carbody = body
-		var/obj/item/bodypart/bodypart = pick(carbody.get_bodyparts())
-		ripped_thing = bodypart
-
-		carbody.apply_damage(25, BRUTE, bodypart, sharpness = SHARP_EDGED)
-		if(!(bodypart.bodytype & BODYTYPE_ORGANIC))
-			exterior_text = "exterior"
-	else
-		body.apply_damage(25, BRUTE, sharpness = SHARP_EDGED)
-		// If it is not a carbon mob, we will just check biotypes and damage it directly.
-		if(body.mob_biotypes & (MOB_MINERAL|MOB_ROBOTIC))
-			exterior_text = "exterior"
-
-	// Procure book for flavor text. This is why we call parent at the end.
-	var/obj/item/book/le_book = locate() in selected_atoms
-	if(!le_book)
-		stack_trace("Somehow, no book in codex cicatrix selected atoms! [english_list(selected_atoms)]")
-	playsound(body, 'sound/items/poster/poster_ripped.ogg', 100, TRUE)
-	body.do_jitter_animation()
-	body.visible_message(span_danger("An awful ripping sound is heard as [ripped_thing]'s [exterior_text] is ripped straight out, wrapping around [le_book || "the book"], turning into an eldritch shade of blue!"))
-	return ..()
-
 /datum/heretic_knowledge/feast_of_owls
 	name = "Feast of Owls"
 	desc = "Allows you to undergo a ritual that gives you 5 knowledge points but locks you out of ascension. This can only be done once and cannot be reverted."
@@ -322,42 +244,3 @@ GLOBAL_LIST_INIT(heretic_start_knowledge, initialize_starting_knowledge())
 	var/drain_message = pick_list(HERETIC_INFLUENCE_FILE, "drain_message")
 	to_chat(user, span_hypnophrase(span_big("[drain_message]")))
 	return .
-
-/**
- * Warren King's Welcome
- * Ritual available at the start. So that heretics can easily gain access to maintenance airlocks without having to rely on a HoP or having to off some poor assistant.
- * Gives access to solars since those doors are especially useful to get in or out of space.
- */
-/datum/heretic_knowledge/bookworm
-	name = "Warren King's Welcome"
-	desc = "Allows you to transmute 5 cable pieces and a piece of paper to infuse any ID with maintenace and external airlock access."
-	gain_text = "Gnawed into vicious-stained fingerbones, my grim invitation snaps my nauseous and clouded mind towards the heavy-set door. \
-	Slowly, the light dances between a crawling darkness, blanketing the fetid promenade with infinite machinations. \
-	But the King will soon take his pound of flesh. Even here, the taxman takes their cut. For there are a thousands mouths to feed."
-	required_atoms = list(
-		/obj/item/stack/cable_coil = 5,
-		/obj/item/paper = 1,
-	)
-	cost = 1
-	is_starting_knowledge = TRUE
-	priority = MAX_KNOWLEDGE_PRIORITY - 3
-	research_tree_icon_path = 'icons/obj/card.dmi'
-	research_tree_icon_state = "eldritch"
-
-/datum/heretic_knowledge/bookworm/recipe_snowflake_check(mob/living/user, list/atoms, list/selected_atoms, turf/loc)
-	. = ..()
-	for(var/obj/item/card/id/used_id in atoms)
-		if((ACCESS_MAINT_TUNNELS in used_id.access) && (ACCESS_EXTERNAL_AIRLOCKS in used_id.access)) // If we can't give any access we aren't elligible
-			continue
-		selected_atoms += used_id
-		return TRUE
-
-	user.balloon_alert(user, "ritual failed, no ID lacking access!")
-	return FALSE
-
-/datum/heretic_knowledge/bookworm/on_finished_recipe(mob/living/user, list/selected_atoms, turf/loc)
-	. = ..()
-	var/obj/item/card/id/improved_id = locate() in selected_atoms
-	improved_id.add_access(list(ACCESS_MAINT_TUNNELS, ACCESS_EXTERNAL_AIRLOCKS), mode = FORCE_ADD_ALL)
-	selected_atoms -= improved_id
-	return TRUE