diff --git a/CHANGELOG.md b/CHANGELOG.md
index 412e02c..8b9c736 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 ## [Unreleased]
 
 ### Changed
+- **Audiobook namespace wiring.** Network helpers and public casting, recast, export, and save actions now register
+  after their lazy modules load, completing the namespace bridge without removing legacy global entry points.
 - **Audiobook live cast-view extraction.** The live cast feed, roster, settings, and prompt controls now live in
   `audiobook-cast.js`; the legacy `audiobookCastView` entry point remains available for compatibility.
 - **Rehearser voice-matching extraction.** Local voice matching, preview-line selection, fish.audio search/import,
diff --git a/VERSION b/VERSION
index c2988cb..a359225 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.24.48
+1.24.49
diff --git a/static/index.html b/static/index.html
index d2bb41f..655721c 100644
--- a/static/index.html
+++ b/static/index.html
@@ -10,7 +10,7 @@
   <meta name="format-detection" content="telephone=no">
   <meta name="color-scheme" content="light dark">
   <meta name="theme-color" content="#2563EB">
-  <meta name="app-version" content="1.24.48">
+  <meta name="app-version" content="1.24.49">
   <link rel="manifest" href="/manifest.webmanifest">
   <link rel="icon" href="/static/icon.svg" type="image/svg+xml">
   <link rel="apple-touch-icon" href="/static/icon.svg">
@@ -27,12 +27,12 @@
 
   <!-- ── Core styles (local — no CDN dependency for first paint) ────────── -->
   <link rel="stylesheet" href="/static/vendor/mdi/materialdesignicons.min.css">
-  <link rel="stylesheet" href="/static/style.css?v=1.24.48">
-  <link rel="stylesheet" href="/static/css/resource-diagnostics.css?v=1.24.48">
-  <link rel="stylesheet" href="/static/css/background-jobs.css?v=1.24.48">
-  <link rel="stylesheet" href="/static/css/voice-design.css?v=1.24.48">
-  <link rel="stylesheet" href="/static/css/rehearser.css?v=1.24.48">
-  <link rel="stylesheet" href="/static/css/audiobook.css?v=1.24.48">
+  <link rel="stylesheet" href="/static/style.css?v=1.24.49">
+  <link rel="stylesheet" href="/static/css/resource-diagnostics.css?v=1.24.49">
+  <link rel="stylesheet" href="/static/css/background-jobs.css?v=1.24.49">
+  <link rel="stylesheet" href="/static/css/voice-design.css?v=1.24.49">
+  <link rel="stylesheet" href="/static/css/rehearser.css?v=1.24.49">
+  <link rel="stylesheet" href="/static/css/audiobook.css?v=1.24.49">
 
 
   <!-- ── Flag icons — non-blocking (loaded async, icons appear after JS) ── -->
@@ -397,7 +397,7 @@ window.toggleNavTree = function(treeId, chevronId) {
 </script>
 
 <!-- loader.js: fetches sections → loads JS modules → removes skeleton -->
-<script src="/static/loader.js?v=1.24.48"></script>
+<script src="/static/loader.js?v=1.24.49"></script>
 
 </body>
 </html>
diff --git a/static/js/audiobook.js b/static/js/audiobook.js
index 5441dc6..fa11de2 100644
--- a/static/js/audiobook.js
+++ b/static/js/audiobook.js
@@ -3562,3 +3562,14 @@ function audiobookExportDialog() {
     modal.style.display = 'flex';
   }
 }
+
+window.TTVC = window.TTVC || {};
+window.TTVC.audiobook = window.TTVC.audiobook || {};
+Object.assign(window.TTVC.audiobook, {
+  startCast: audiobookCast,
+  openCastView: audiobookOpenCastView,
+  recastUnknown: audiobookRecastUnknown,
+  recastSelectedCharacters: audiobookRecastSelectedCharacters,
+  export: audiobookExport,
+  saveAsRehearsal: audiobookSaveAsRehearsal,
+});
diff --git a/static/js/audiobook/network.js b/static/js/audiobook/network.js
index 6608b0f..36aa2e0 100644
--- a/static/js/audiobook/network.js
+++ b/static/js/audiobook/network.js
@@ -85,3 +85,11 @@ async function audiobookAttributeStream(body, view, outerSignal, idleTimeoutMs =
     if (outerSignal) outerSignal.removeEventListener('abort', onAbort);
   }
 }
+
+window.TTVC = window.TTVC || {};
+window.TTVC.audiobook = window.TTVC.audiobook || {};
+Object.assign(window.TTVC.audiobook, {
+  fetchWithTimeout: audiobookFetchWithTimeout,
+  attributeStream: audiobookAttributeStream,
+  timeoutSeconds: audiobookTimeoutSeconds,
+});
diff --git a/tests/lazy-loading.spec.js b/tests/lazy-loading.spec.js
index 97da28c..4b0ca12 100644
--- a/tests/lazy-loading.spec.js
+++ b/tests/lazy-loading.spec.js
@@ -23,3 +23,16 @@ test('heavy feature modules load on demand', async ({ page }) => {
   await page.waitForTimeout(100);
   expect(requests.filter(url => url.includes('/rehearser.js')).length).toBe(countBeforeRepeat);
 });
+
+test('Audiobook lazy modules publish their namespace APIs after loading', async ({ page }) => {
+  await page.goto('/', { waitUntil: 'domcontentloaded' });
+  await page.waitForFunction(() => typeof window.navTo === 'function', null, { timeout: 15_000 });
+  await page.waitForSelector('#app-skeleton', { state: 'detached', timeout: 15_000 });
+  await page.evaluate(() => window.navTo('s-reader'));
+  await page.waitForFunction(() => typeof window.audiobookCastView === 'function', null, { timeout: 15_000 });
+  await expect.poll(() => page.evaluate(() => ({
+    castView: typeof window.TTVC?.audiobook?.cast?.castView,
+    stream: typeof window.TTVC?.audiobook?.attributeStream,
+    startCast: typeof window.TTVC?.audiobook?.startCast,
+  }))).toEqual({ castView: 'function', stream: 'function', startCast: 'function' });
+});