Changed the lich transformation to be done in a safer way.

data/campaigns/The_Hammer_of_Thursagan/scenarios/11_The_Court_of_Karrag.cfg

@@ -226,10 +226,31 @@
             message=_"The Law speaks.  Against him with the eyes to see, no deception can hold.  I AM A WITNESS!"
         [/message]
 
+        [store_unit]
+            [filter]
+                description=Karrag
+            [/filter]
+
+            kill=yes
+            variable=stored_Karrag
+        [/store_unit]
+
+        [unit]
+            type=Lich
+            description=Karrag
+            user_description=_"Karrag"
+            canrecruit=1
+            side=2
+            facing=sw
+            x,y=$stored_Karrag.x,$stored_Karrag.y
+        [/unit]
+
         [sound]
             name=lich-hit-1.ogg
         [/sound]
-        {MODIFY_UNIT description=Karrag type "Lich"}
+
+        {CLEAR_VARIABLE stored_Karrag}
+
         [redraw]
         [/redraw]