diff --git a/code/modules/antagonists/eldritch_cult/eldritch_items.dm b/code/modules/antagonists/eldritch_cult/eldritch_items.dm
index 7b35f4e71b..6b4a42baf0 100644
--- a/code/modules/antagonists/eldritch_cult/eldritch_items.dm
+++ b/code/modules/antagonists/eldritch_cult/eldritch_items.dm
@@ -6,6 +6,17 @@
 	w_class = WEIGHT_CLASS_SMALL
 	///Target
 	var/mob/living/carbon/human/target
+	var/datum/antagonist/heretic/sac_targetter	//The heretic who used this to acquire the current target - gets cleared when target gets sacrificed.
+
+/obj/item/living_heart/Initialize()
+	. = ..()
+	GLOB.living_heart_cache.Add(src)	//Add is better than +=.
+
+/obj/item/living_heart/Destroy()
+	GLOB.living_heart_cache.Remove(src)
+	if(sac_targetter && target)
+		sac_targetter.sac_targetted.Remove(target.real_name)
+	return ..()
 
 /obj/item/living_heart/attack_self(mob/user)
 	. = ..()
diff --git a/code/modules/antagonists/eldritch_cult/eldritch_knowledge.dm b/code/modules/antagonists/eldritch_cult/eldritch_knowledge.dm
index d25600e92c..d2132be4bc 100644
--- a/code/modules/antagonists/eldritch_cult/eldritch_knowledge.dm
+++ b/code/modules/antagonists/eldritch_cult/eldritch_knowledge.dm
@@ -267,6 +267,10 @@
 			LH.target = null
 			var/datum/antagonist/heretic/EC = carbon_user.mind.has_antag_datum(/datum/antagonist/heretic)
 
+			EC.actually_sacced.Add(H.real_name)
+			if(LH.sac_targetter)
+				LH.sac_targetter.sac_targetted.Remove(H.real_name)
+			LH.sac_targetter = null
 			EC.total_sacrifices++
 			for(var/X in carbon_user.get_all_gear())
 				if(!istype(X,/obj/item/forbidden_book))
@@ -280,8 +284,14 @@
 			var/datum/objective/A = new
 			A.owner = user.mind
 			var/list/targets = list()
+			var/list/target_blacklist = list()
+			for(var/obj/item/living_heart/CLH in GLOB.living_heart_cache)
+				if(!CLH || !CLH.target || !CLH.target.mind)
+					continue
+				target_blacklist.Add(CLH.target.mind)
+
 			for(var/i in 0 to 3)
-				var/datum/mind/targeted =  A.find_target()//easy way, i dont feel like copy pasting that entire block of code
+				var/datum/mind/targeted =  A.find_target(blacklist = target_blacklist)//easy way, i dont feel like copy pasting that entire block of code
 				if(!targeted)
 					break
 				targets["[targeted.current.real_name] the [targeted.assigned_role]"] = targeted.current
@@ -289,9 +299,23 @@
 
 			if(!LH.target && targets.len)
 				LH.target = pick(targets)	//Tsk tsk, you can and will get another target if you want it or not.
+
+			if(LH.target)
+				target_blacklist = list()
+				for(var/obj/item/living_heart/CLH in (GLOB.living_heart_cache - LH))	//Recreate blacklist, excluding ourselves.
+					if(!CLH || !CLH.target || !CLH.target.mind)
+						continue
+					target_blacklist.Add(CLH.target.mind)
+				if(LH.target.mind in target_blacklist)	//Someone was faster, or you tried to cheese the system.
+					to_chat(user, "<span class='warning'>It seems you were too slow, and your target of choice has already been selected by another living heart!</span>")
+					LH.target = null
+
 			qdel(A)
 			if(LH.target)
 				to_chat(user,"<span class='warning'>Your new target has been selected, go and sacrifice [LH.target.real_name]!</span>")
+				var/datum/antagonist/heretic/EC = carbon_user.mind.has_antag_datum(/datum/antagonist/heretic)
+				LH.sac_targetter = EC
+				EC.sac_targetted.Add(LH.target.real_name)
 			else
 				to_chat(user,"<span class='warning'>target could not be found for living heart.</span>")