diff --git a/gemp-lotr/gemp-lotr-async/src/main/web/includes/changeLog.html b/gemp-lotr/gemp-lotr-async/src/main/web/includes/changeLog.html
index 7c83caa5e..21035094e 100644
--- a/gemp-lotr/gemp-lotr-async/src/main/web/includes/changeLog.html
+++ b/gemp-lotr/gemp-lotr-async/src/main/web/includes/changeLog.html
@@ -28,6 +28,7 @@
 - Added "Skillful Negociator"
 - Added "Beorn's House"
 - Added "Forest River"
+- Added "Thrór's Throne"
 
 <b>17 Dec. 2015</b>
 - "Armor of Khazad" no longer allows to return itself from discard and can now be transferred.
diff --git a/gemp-lotr/gemp-lotr-cards/src/main/java/com/gempukku/lotro/cards/set31/site/Card31_055.java b/gemp-lotr/gemp-lotr-cards/src/main/java/com/gempukku/lotro/cards/set31/site/Card31_055.java
new file mode 100644
index 000000000..ba3ef6736
--- /dev/null
+++ b/gemp-lotr/gemp-lotr-cards/src/main/java/com/gempukku/lotro/cards/set31/site/Card31_055.java
@@ -0,0 +1,36 @@
+package com.gempukku.lotro.cards.set31.site;
+
+import com.gempukku.lotro.cards.AbstractSite;
+import com.gempukku.lotro.cards.modifiers.conditions.CantSpotCondition;
+import com.gempukku.lotro.common.Block;
+import com.gempukku.lotro.common.CardType;
+import com.gempukku.lotro.common.Culture;
+import com.gempukku.lotro.common.Keyword;
+import com.gempukku.lotro.filters.Filters;
+import com.gempukku.lotro.game.PhysicalCard;
+import com.gempukku.lotro.game.state.LotroGame;
+import com.gempukku.lotro.logic.modifiers.Modifier;
+import com.gempukku.lotro.logic.modifiers.SpotCondition;
+import com.gempukku.lotro.logic.modifiers.TwilightCostModifier;
+
+import java.util.List;
+
+/**
+ * Thrór's Throne. Site Card.
+ * Site Number: 9
+ * Shadow Number: 9
+ * 'Mountain. Underground. If you cannot spot [Dwarven] the Arkenstone, the twilight cost of each minion is -1.'
+ */
+public class Card31_055 extends AbstractSite {
+    public Card31_055() {
+        super("Thrór's Throne", Block.HOBBIT, 9, 9, Direction.RIGHT);
+        addKeyword(Keyword.MOUNTAIN);
+        addKeyword(Keyword.UNDERGROUND);
+    }
+
+    @Override
+    public Modifier getAlwaysOnModifier(LotroGame game, PhysicalCard self) {
+        return new TwilightCostModifier(self, CardType.MINION,
+                new CantSpotCondition(Culture.DWARVEN, Filters.name("The Arkenstone")), -1);
+    }
+}