diff --git a/internal/config/config.go b/internal/config/config.go
index af4fae8..a724b96 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -38,6 +38,48 @@ type AdventureConfig struct {
 	// 17. A pointer so digest_hour = 0 (midnight UTC) is distinguishable from
 	// "unset" and doesn't get silently rewritten to the default.
 	DigestHour *int `toml:"digest_hour"`
+	// RoomSilentTypes lists event types gogobee already announces in the games
+	// room in TwinBee's own voice. Pete stores them and publishes them on the
+	// site, but never posts them to Matrix — neither the live priority beat nor
+	// the daily digest — so the room hears each moment once.
+	//
+	// Unset falls back to defaultRoomSilentTypes; an explicit empty list turns
+	// the suppression off and restores the double-post.
+	RoomSilentTypes []string `toml:"room_silent_types"`
+}
+
+// defaultRoomSilentTypes are the event types TwinBee announces to the games room
+// itself as of gogobee HEAD. Each has a matching room announce on the gogobee
+// side (announceTreasureToRoom, the duel broadcast, announceMischief*,
+// announceWorldBoss), so a Pete post is a second telling of the same beat.
+//
+// Types NOT listed here have no room announce behind them and are Pete's alone
+// to report: zone_clear, zone_first, boss_kill, arrival, departure, death,
+// retreat, milestone, companion_hire.
+var defaultRoomSilentTypes = []string{
+	"treasure_found",
+	"rival_result",
+	"mischief_contract",
+	"mischief_survived",
+	"mischief_downed",
+	"mischief_fizzled",
+	"siege_start",
+	"siege_win",
+	"siege_loss",
+}
+
+// RoomSilentSet returns the room-suppressed event types as a lookup set,
+// resolving the unset case. Safe on a zero-value AdventureConfig.
+func (a AdventureConfig) RoomSilentSet() map[string]bool {
+	types := a.RoomSilentTypes
+	if types == nil {
+		types = defaultRoomSilentTypes
+	}
+	set := make(map[string]bool, len(types))
+	for _, t := range types {
+		set[t] = true
+	}
+	return set
 }
 
 // DigestHourOrDefault is the UTC hour the daily digest posts, resolving the
diff --git a/internal/web/adventure.go b/internal/web/adventure.go
index 532fba1..e20fc04 100644
--- a/internal/web/adventure.go
+++ b/internal/web/adventure.go
@@ -76,6 +76,13 @@ const advSource = "Pete"
 // Matrix; the row exists only so the digest skips it.
 const advBackfillEvent = "adv-backfill"
 
+// advRoomSilentEvent is the synthetic post_log event id used to retire a
+// dispatch whose event type gogobee announces in the games room itself. Like
+// advBackfillEvent it never went to Matrix; the row exists so the digest skips
+// it, and the distinct id keeps "TwinBee said it" separable from "backfilled"
+// when reading post_log later.
+const advRoomSilentEvent = "adv-room-silent"
+
 // handleAdventureIngest receives a game-event fact from gogobee, templates it
 // into a deterministic story, publishes it to the /adventure section, and posts
 // PRIORITY beats live to Matrix. Bearer-authed; idempotent on the fact GUID.
@@ -210,13 +217,25 @@ func (s *Server) handleAdventureIngest(w http.ResponseWriter, r *http.Request) {
 
 	slog.Info("adventure ingest: published", "guid", f.GUID, "event_type", f.EventType, "tier", f.Tier)
 
-	// NoPush (cold-start backfill) means "never goes to Matrix". Suppressing only
-	// the live post isn't enough: the digest collects adventure rows that carry no
-	// post_log entry, so a backfilled bulletin would still be swept into the next
-	// roundup — the back-catalogue dump NoPush exists to prevent. Retire the guid
-	// against the digest up front instead.
-	if f.NoPush {
-		storage.MarkAdventureDigested([]string{f.GUID}, advBackfillEvent)
+	// Two reasons a dispatch never reaches Matrix, both retired the same way:
+	//
+	//   - NoPush: a cold-start backfill, the back-catalogue dump it exists to
+	//     prevent.
+	//   - A room-silent type: gogobee already announced this exact moment to the
+	//     games room in TwinBee's voice, and relaying it is the room hearing one
+	//     beat twice in two voices.
+	//
+	// Suppressing only the live post isn't enough: the digest collects adventure
+	// rows that carry no post_log entry, so a held-back bulletin would still be
+	// swept into the next roundup. Retire the guid against the digest up front
+	// instead. The row was stored above either way, so the site, the permalink
+	// and the push alerts keep the full record.
+	if f.NoPush || s.roomSilent[f.EventType] {
+		retiredAs := advBackfillEvent
+		if !f.NoPush {
+			retiredAs = advRoomSilentEvent
+		}
+		storage.MarkAdventureDigested([]string{f.GUID}, retiredAs)
 		w.WriteHeader(http.StatusOK)
 		_, _ = w.Write([]byte("ok"))
 		return
diff --git a/internal/web/adventure_test.go b/internal/web/adventure_test.go
index 6bfee1c..c6c1c45 100644
--- a/internal/web/adventure_test.go
+++ b/internal/web/adventure_test.go
@@ -162,10 +162,12 @@ func TestAdventureDigest(t *testing.T) {
 	now := time.Now()
 
 	// Two bulletins + one priority (which posts live and must be excluded).
+	// Both bulletin types are ones TwinBee does NOT announce itself — a
+	// room-silent type never reaches the digest (see TestAdventureRoomSilent).
 	postFact(t, s, token, AdvFact{GUID: "arrival:a:1", EventType: "arrival", Tier: "bulletin",
 		Actors: []string{"Zapp"}, Subject: "Zapp", ClassRace: "Elf Ranger", OccurredAt: now.Unix()})
-	postFact(t, s, token, AdvFact{GUID: "rival:b:2", EventType: "rival_result", Tier: "bulletin",
-		Actors: []string{"Kif", "Zapp"}, Subject: "Kif", Opponent: "Zapp", Outcome: "won", OccurredAt: now.Unix()})
+	postFact(t, s, token, AdvFact{GUID: "milestone:b:2", EventType: "milestone", Tier: "bulletin",
+		Actors: []string{"Kif"}, Subject: "Kif", Milestone: "Ten zones cleared", OccurredAt: now.Unix()})
 	postFact(t, s, token, AdvFact{GUID: "death:c:3", EventType: "death", Tier: "priority",
 		Actors: []string{"Brannigan"}, Subject: "Brannigan", Zone: "the Underforge", Level: 9, OccurredAt: now.Unix()})
 	if len(*posted) != 1 {
@@ -191,6 +193,43 @@ func TestAdventureDigest(t *testing.T) {
 	}
 }
 
+// TestAdventureRoomSilent: an event type gogobee announces in the games room
+// itself is published to the site but never reaches Matrix — not as a live
+// priority beat, and not swept into the next digest either.
+func TestAdventureRoomSilent(t *testing.T) {
+	const token = "t"
+	s, posted := newAdvServer(t, token)
+	now := time.Now()
+
+	postFact(t, s, token, AdvFact{GUID: "treasure_found:e:5", EventType: "treasure_found", Tier: "priority",
+		Actors: []string{"Rurina"}, Subject: "Rurina", Zone: "Dragon's Lair", Level: 20,
+		Stakes: "The Cartographer's Final Map", Outcome: "legendary", OccurredAt: now.Unix()})
+	if len(*posted) != 0 {
+		t.Fatalf("room-silent beat posted live: %d posts, want 0", len(*posted))
+	}
+
+	// The site keeps the full record — suppression is Matrix-only.
+	got, err := storage.GetStoryByGUID("treasure_found:e:5")
+	if err != nil || got == nil {
+		t.Fatalf("room-silent beat missing from the site: %v", err)
+	}
+
+	// And it doesn't come back around in the roundup.
+	s.postDailyDigest(now.UTC())
+	if len(*posted) != 0 {
+		t.Errorf("room-silent beat swept into digest: %d posts, want 0", len(*posted))
+	}
+
+	// An explicit empty list turns suppression off: the same beat posts live.
+	s.roomSilent = config.AdventureConfig{RoomSilentTypes: []string{}}.RoomSilentSet()
+	postFact(t, s, token, AdvFact{GUID: "treasure_found:e:6", EventType: "treasure_found", Tier: "priority",
+		Actors: []string{"Rurina"}, Subject: "Rurina", Zone: "Dragon's Lair", Level: 20,
+		Stakes: "The Cartographer's Final Map", Outcome: "legendary", OccurredAt: now.Unix()})
+	if len(*posted) != 1 {
+		t.Errorf("suppression off: %d posts, want 1", len(*posted))
+	}
+}
+
 // TestAdventureArtAndMeta covers the visual-identity slice: the emblem endpoint
 // returns a themed SVG, ingested cards carry its local path, and the permalink
 // page is noindex with an og:image.
diff --git a/internal/web/server.go b/internal/web/server.go
index 76913b6..f0eb73d 100644
--- a/internal/web/server.go
+++ b/internal/web/server.go
@@ -69,6 +69,7 @@ type Server struct {
 	pushHTTP       *http.Client                  // SSRF-guarded client for Web Push delivery; built lazily by pushClient()
 	adv            config.AdventureConfig        // gogobee adventure-news seam
 	advPost        PriorityPoster                // posts priority adventure beats to Matrix; nil = web-only
+	roomSilent     map[string]bool               // event types TwinBee announces itself: site yes, Matrix never
 	channels       []Channel                     // live sections: the catalogue minus anything gated off (adventure)
 
 	// Daily-rotated salt for the privacy-preserving unique-visitor estimate.
@@ -144,7 +145,7 @@ func New(cfg config.WebConfig, sources []config.SourceConfig, postingEnabled boo
 		live = append(live, ch)
 	}
 
-	s := &Server{cfg: cfg, sources: infos, postingEnabled: postingEnabled, tpls: tpls, adminSubs: adminSubs, adv: adv, advPost: advPost, channels: live, hub: newGamesHub(), tableLocks: newStripedLocks(), tableGames: []tableGame{holdemTable{}, unoTable{}}}
+	s := &Server{cfg: cfg, sources: infos, postingEnabled: postingEnabled, tpls: tpls, adminSubs: adminSubs, adv: adv, advPost: advPost, roomSilent: adv.RoomSilentSet(), channels: live, hub: newGamesHub(), tableLocks: newStripedLocks(), tableGames: []tableGame{holdemTable{}, unoTable{}}}
 
 	// Optional OIDC sign-in (Authentik). Discovery is a network call; if the
 	// provider is unreachable at boot we log and serve anonymously rather than