diff --git a/data/campaigns/The_Hammer_of_Thursagan/scenarios/12_The_Underlevels.cfg b/data/campaigns/The_Hammer_of_Thursagan/scenarios/12_The_Underlevels.cfg
index c499b7f76bb..44e5a4b8618 100644
--- a/data/campaigns/The_Hammer_of_Thursagan/scenarios/12_The_Underlevels.cfg
+++ b/data/campaigns/The_Hammer_of_Thursagan/scenarios/12_The_Underlevels.cfg
@@ -275,6 +275,11 @@
                 name=liches_active
                 value=yes
             [/set_variable]
+
+            [set_variable]
+                name=key_dialogue
+                equals=no
+            [/set_variable]
         [/then]
     [/if]
 #enddef
@@ -536,15 +541,26 @@
             [/variable]
 
             [then]
-                [message]
-                    speaker=unit
-                    message= _ "It seems that guard spoke truth. These doors cannot be forced open by any means we have!"
-                [/message]
-
-                [message]
-                    speaker="Angarthing"
-                    message= _ "I sense these bindings to be the work of common sorcery, not the power of the Hammer. Usually to each such locking spell there is some sort of key. If we can but find the key, we will able to open these doors."
-                [/message]
+                [if]
+                    [variable]
+                        name=key_dialogue
+                        equals=no
+                    [/variable]
+                    [then]
+                        [message]
+                            speaker=unit
+                            message= _ "It seems that guard spoke truth. These doors cannot be forced open by any means we have!"
+                        [/message]
+                        [message]
+                            speaker="Angarthing"
+                            message= _ "I sense these bindings to be the work of common sorcery, not the power of the Hammer. Usually to each such locking spell there is some sort of key. If we can but find the key, we will able to open these doors."
+                        [/message]
+                        [set_variable]
+                            name=key_dialogue
+                            equals=yes
+                        [/set_variable]
+                    [/then]
+                [/if]
             [/then]
         [/if]