diff --git a/Mage.Sets/src/mage/cards/s/StayHiddenStaySilent.java b/Mage.Sets/src/mage/cards/s/StayHiddenStaySilent.java
new file mode 100644
index 00000000000..2345485c20b
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/StayHiddenStaySilent.java
@@ -0,0 +1,97 @@
+package mage.cards.s;
+
+import mage.abilities.Ability;
+import mage.abilities.common.ActivateAsSorceryActivatedAbility;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.DontUntapInControllersUntapStepEnchantedEffect;
+import mage.abilities.effects.common.TapEnchantedEffect;
+import mage.abilities.effects.keyword.ManifestDreadEffect;
+import mage.abilities.keyword.EnchantAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.Optional;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class StayHiddenStaySilent extends CardImpl {
+
+    public StayHiddenStaySilent(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{1}{U}");
+
+        this.subtype.add(SubType.AURA);
+
+        // Enchant creature
+        TargetPermanent auraTarget = new TargetCreaturePermanent();
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
+        this.addAbility(new EnchantAbility(auraTarget));
+
+        // When Stay Hidden, Stay Silent enters, tap enchanted creature.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new TapEnchantedEffect()));
+
+        // Enchanted creature doesn't untap during its controller's untap step.
+        this.addAbility(new SimpleStaticAbility(new DontUntapInControllersUntapStepEnchantedEffect()));
+
+        // {4}{U}{U}: Shuffle enchanted creature into its owner's library, then manifest dread. Activate only as a sorcery.
+        Ability ability = new ActivateAsSorceryActivatedAbility(
+                new StayHiddenStaySilentEffect(), new ManaCostsImpl<>("{4}{U}{U}")
+        );
+        ability.addEffect(new ManifestDreadEffect().concatBy(", then"));
+        this.addAbility(ability);
+    }
+
+    private StayHiddenStaySilent(final StayHiddenStaySilent card) {
+        super(card);
+    }
+
+    @Override
+    public StayHiddenStaySilent copy() {
+        return new StayHiddenStaySilent(this);
+    }
+}
+
+class StayHiddenStaySilentEffect extends OneShotEffect {
+
+    StayHiddenStaySilentEffect() {
+        super(Outcome.Benefit);
+        staticText = "shuffle enchanted creature into its owner's library";
+    }
+
+    private StayHiddenStaySilentEffect(final StayHiddenStaySilentEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public StayHiddenStaySilentEffect copy() {
+        return new StayHiddenStaySilentEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Optional.ofNullable(source.getSourcePermanentOrLKI(game))
+                .map(Permanent::getAttachedTo)
+                .map(game::getPermanent)
+                .ifPresent(permanent -> {
+                    Player player = game.getPlayer(permanent.getControllerId());
+                    if (player != null) {
+                        player.shuffleCardsToLibrary(permanent, game, source);
+                    }
+                });
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
index 90dc77dd58e..3c0ffc7f76f 100644
--- a/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
+++ b/Mage.Sets/src/mage/sets/DuskmournHouseOfHorror.java
@@ -71,6 +71,7 @@ public final class DuskmournHouseOfHorror extends ExpansionSet {
         cards.add(new SetCardInfo("Shepherding Spirits", 31, Rarity.COMMON, mage.cards.s.ShepherdingSpirits.class));
         cards.add(new SetCardInfo("Slavering Branchsnapper", 198, Rarity.COMMON, mage.cards.s.SlaveringBranchsnapper.class));
         cards.add(new SetCardInfo("Split Up", 32, Rarity.RARE, mage.cards.s.SplitUp.class));
+        cards.add(new SetCardInfo("Stay Hidden, Stay Silent", 74, Rarity.UNCOMMON, mage.cards.s.StayHiddenStaySilent.class));
         cards.add(new SetCardInfo("Strangled Cemetery", 268, Rarity.COMMON, mage.cards.s.StrangledCemetery.class));
         cards.add(new SetCardInfo("Swamp", 274, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("The Jolly Balloon Man", 219, Rarity.RARE, mage.cards.t.TheJollyBalloonMan.class));