diff --git a/migrations/142_audiobooks_feature_flag.down.sql b/migrations/142_audiobooks_feature_flag.down.sql
new file mode 100644
index 00000000..0ad095b6
--- /dev/null
+++ b/migrations/142_audiobooks_feature_flag.down.sql
@@ -0,0 +1 @@
+DELETE FROM server_settings WHERE key = 'audiobooks.enabled';
diff --git a/migrations/142_audiobooks_feature_flag.up.sql b/migrations/142_audiobooks_feature_flag.up.sql
new file mode 100644
index 00000000..03bb7b90
--- /dev/null
+++ b/migrations/142_audiobooks_feature_flag.up.sql
@@ -0,0 +1,6 @@
+-- Master kill-switch for the absorbed audiobooks feature. Defaults to
+-- 'false' so landing migrations 139-142 is a no-op for users; operators
+-- flip this to 'true' at cutover.
+
+INSERT INTO server_settings (key, value) VALUES ('audiobooks.enabled', 'false')
+ON CONFLICT (key) DO NOTHING;