diff --git a/components/ScribeControllerBar.tsx b/components/ScribeControllerBar.tsx
index e90759c..8a6d2f5 100644
--- a/components/ScribeControllerBar.tsx
+++ b/components/ScribeControllerBar.tsx
@@ -77,6 +77,7 @@ export default function ScribeControllerBar() {
                 publicationDate: response.desiredReleaseDate,
                 desiredWordCount: response.desiredWordCount,
                 totalWordCount: response.desiredWordCount,
+                quillsenseEnabled: response.quillsenseEnabled,
             });
         } catch (e: unknown) {
             if (e instanceof Error) {
@@ -141,7 +142,7 @@ export default function ScribeControllerBar() {
             </div>
             <div className="flex items-center space-x-4">
                 {
-                    hasAccess &&
+                    hasAccess && book?.quillsenseEnabled !== false &&
                     <CreditCounter isCredit={isSubTierTwo}/>
                 }
                 <div
diff --git a/components/book/BookList.tsx b/components/book/BookList.tsx
index f9b0112..6758730 100644
--- a/components/book/BookList.tsx
+++ b/components/book/BookList.tsx
@@ -266,6 +266,7 @@ export default function BookList() {
                     totalWordCount: 0,
                     localBook: localBookOnly,
                     coverImage: bookResponse?.coverImage ? 'data:image/jpeg;base64,' + bookResponse.coverImage : '',
+                    quillsenseEnabled: bookResponse?.quillsenseEnabled,
                 });
             }
         } catch (e: unknown) {
diff --git a/components/book/settings/BookSettingOption.tsx b/components/book/settings/BookSettingOption.tsx
index a089ab7..b6e6c71 100644
--- a/components/book/settings/BookSettingOption.tsx
+++ b/components/book/settings/BookSettingOption.tsx
@@ -7,6 +7,7 @@ import {RefObject, useRef} from "react";
 import PanelHeader from "@/components/PanelHeader";
 import LocationComponent from "@/components/book/settings/locations/LocationComponent";
 import CharacterComponent from "@/components/book/settings/characters/CharacterComponent";
+import QuillSenseSetting from "@/components/book/settings/quillsense/QuillSenseSetting";
 import {useTranslations} from "next-intl"; // Ajouté pour la traduction
 
 export default function BookSettingOption(
@@ -35,7 +36,10 @@ export default function BookSettingOption(
     const characterRef: RefObject<{ handleSave: () => Promise<void> } | null> = useRef<{
         handleSave: () => Promise<void>
     }>(null);
-    
+    const quillSenseRef: RefObject<{ handleSave: () => Promise<void> } | null> = useRef<{
+        handleSave: () => Promise<void>
+    }>(null);
+
     function renderTitle(): string {
         switch (setting) {
             case 'basic-information':
@@ -54,6 +58,8 @@ export default function BookSettingOption(
                 return t("bookSettingOption.objectsList");
             case 'goals':
                 return t("bookSettingOption.bookGoals");
+            case 'quillsense':
+                return t("bookSettingOption.quillsense");
             default:
                 return "";
         }
@@ -79,6 +85,9 @@ export default function BookSettingOption(
             case 'characters':
                 characterRef.current?.handleSave();
                 break;
+            case 'quillsense':
+                quillSenseRef.current?.handleSave();
+                break;
             default:
                 break;
         }
@@ -109,6 +118,8 @@ export default function BookSettingOption(
                         <LocationComponent ref={locationRef}/>
                     ) : setting === 'characters' ? (
                         <CharacterComponent ref={characterRef}/>
+                    ) : setting === 'quillsense' ? (
+                        <QuillSenseSetting ref={quillSenseRef}/>
                     ) : <div
                         className="text-text-secondary py-4 text-center">{t("bookSettingOption.notAvailable")}</div>
                 }
diff --git a/components/book/settings/BookSettingSidebar.tsx b/components/book/settings/BookSettingSidebar.tsx
index 0fa4939..de1797c 100644
--- a/components/book/settings/BookSettingSidebar.tsx
+++ b/components/book/settings/BookSettingSidebar.tsx
@@ -1,7 +1,7 @@
 'use client'
 // Removed Next.js Link import for Electron
 import {FontAwesomeIcon} from "@fortawesome/react-fontawesome";
-import {faBook, faGlobe, faListAlt, faMapMarkedAlt, faPencilAlt, faUser} from "@fortawesome/free-solid-svg-icons";
+import {faBook, faFeather, faGlobe, faListAlt, faMapMarkedAlt, faPencilAlt, faUser} from "@fortawesome/free-solid-svg-icons";
 import {Dispatch, SetStateAction} from "react";
 import {IconDefinition} from "@fortawesome/fontawesome-svg-core";
 import {useTranslations} from "next-intl";
@@ -53,6 +53,11 @@ export default function BookSettingSidebar(
             name: 'bookSetting.characters',
             icon: faUser
         },
+        {
+            id: 'quillsense',
+            name: 'bookSetting.quillsense',
+            icon: faFeather
+        },
         // {
         //     id: 'objects',
         //     name: t('bookSetting.objects'),
diff --git a/components/editor/TextEditor.tsx b/components/editor/TextEditor.tsx
index faea429..b5804c2 100644
--- a/components/editor/TextEditor.tsx
+++ b/components/editor/TextEditor.tsx
@@ -483,7 +483,7 @@ export default function TextEditor() {
                         onClick={handleShowUserSettings}
                         icon={faCog}
                     />
-                    {chapter?.chapterContent.version === 2 && !isCurrentlyOffline() && !book?.localBook && (
+                    {chapter?.chapterContent.version === 2 && !isCurrentlyOffline() && !book?.localBook && book?.quillsenseEnabled !== false && (
                         <CollapsableButton
                             showCollapsable={showGhostWriter}
                             text={t("textEditor.ghostWriter")}
diff --git a/components/ghostwriter/GhostWriter.tsx b/components/ghostwriter/GhostWriter.tsx
index 9d62d62..33ff1b8 100644
--- a/components/ghostwriter/GhostWriter.tsx
+++ b/components/ghostwriter/GhostWriter.tsx
@@ -260,19 +260,25 @@ export default function GhostWriter() {
         }
     }
     
-    if (!hasAccess) {
+    if (!hasAccess || !book?.quillsenseEnabled) {
         return (
             <div className="flex items-center justify-center h-full">
                 <div
                     className="bg-tertiary/90 backdrop-blur-sm p-10 rounded-2xl shadow-2xl text-center border border-secondary/50 max-w-md">
                     <h2 className="text-2xl font-['ADLaM_Display'] text-text-primary mb-4">{t("ghostWriter.title")}</h2>
-                    <p className="text-muted mb-6 text-lg leading-relaxed">{t("ghostWriter.subscriptionRequired")}</p>
-                    <button
-                        onClick={(): string => window.location.href = '/pricing'}
-                        className="px-6 py-3 bg-primary text-text-primary rounded-xl hover:bg-primary-dark transition-all duration-200 hover:scale-105 shadow-md hover:shadow-lg font-semibold"
-                    >
-                        {t("ghostWriter.subscribe")}
-                    </button>
+                    <p className="text-muted mb-6 text-lg leading-relaxed">
+                        {!book?.quillsenseEnabled
+                            ? t("ghostWriter.quillsenseDisabled")
+                            : t("ghostWriter.subscriptionRequired")}
+                    </p>
+                    {hasAccess && !book?.quillsenseEnabled ? null : (
+                        <button
+                            onClick={(): string => window.location.href = '/pricing'}
+                            className="px-6 py-3 bg-primary text-text-primary rounded-xl hover:bg-primary-dark transition-all duration-200 hover:scale-105 shadow-md hover:shadow-lg font-semibold"
+                        >
+                            {t("ghostWriter.subscribe")}
+                        </button>
+                    )}
                 </div>
             </div>
         );
diff --git a/components/rightbar/ComposerRightBar.tsx b/components/rightbar/ComposerRightBar.tsx
index 736c730..30bcee2 100644
--- a/components/rightbar/ComposerRightBar.tsx
+++ b/components/rightbar/ComposerRightBar.tsx
@@ -171,7 +171,16 @@ export default function ComposerRightBar() {
             <div className="bg-tertiary border-l border-secondary/50 p-3 flex flex-col space-y-3 shadow-xl">
                 {book ? editorComponents
                     .filter((component: PanelComponent):boolean => {
-                        return !((isCurrentlyOffline() || book?.localBook) && component.id === 1);
+                        // Filter QuillSense if offline, local book, or quillsenseEnabled is false
+                        if (component.id === 1) {
+                            if (isCurrentlyOffline() || book?.localBook) {
+                                return false;
+                            }
+                            if (book?.quillsenseEnabled === false) {
+                                return false;
+                            }
+                        }
+                        return true;
                     })
                     .map((component: PanelComponent) => (
                     <button
diff --git a/electron/database/repositories/chaptercontent.repository.ts b/electron/database/repositories/chaptercontent.repository.ts
index d1eddac..e0e8ef5 100644
--- a/electron/database/repositories/chaptercontent.repository.ts
+++ b/electron/database/repositories/chaptercontent.repository.ts
@@ -1,4 +1,4 @@
-import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
+import {Database, QueryResult, RunResult, SQLiteValue} from "node-sqlite3-wasm";
 import System from "../System.js";
 
 export interface ChapterContentQueryResult extends Record<string, SQLiteValue> {
@@ -244,8 +244,7 @@ export default class ChapterContentRepository {
             const db: Database = System.getDb();
             const query: string = 'SELECT content_id, chapter_id, author_id, version, content, words_count, time_on_it, last_update FROM book_chapter_content WHERE author_id=? AND chapter_id=?';
             const params: SQLiteValue[] = [userId, chapterId];
-            const bookChapterContents: BookChapterContentTable[] = db.all(query, params) as BookChapterContentTable[];
-            return bookChapterContents;
+            return db.all(query, params) as BookChapterContentTable[];
         } catch (error: unknown) {
             if (error instanceof Error) {
                 console.error(`DB Error: ${error.message}`);
@@ -267,8 +266,7 @@ export default class ChapterContentRepository {
             const db: Database = System.getDb();
             const query: string = 'SELECT content_id, chapter_id, last_update FROM book_chapter_content WHERE author_id = ?';
             const params: SQLiteValue[] = [userId];
-            const syncedChapterContents: SyncedChapterContentResult[] = db.all(query, params) as SyncedChapterContentResult[];
-            return syncedChapterContents;
+            return db.all(query, params) as SyncedChapterContentResult[];
         } catch (error: unknown) {
             if (error instanceof Error) {
                 console.error(`DB Error: ${error.message}`);
@@ -296,10 +294,7 @@ export default class ChapterContentRepository {
     static insertSyncChapterContent(contentId: string, chapterId: string, authorId: string, version: number, content: string | null, wordsCount: number, timeOnIt: number, lastUpdate: number, lang: 'fr' | 'en'): boolean {
         try {
             const db: Database = System.getDb();
-            const query: string = `
-                INSERT INTO book_chapter_content (content_id, chapter_id, author_id, version, content, words_count, time_on_it, last_update)
-                VALUES (?, ?, ?, ?, ?, ?, ?, ?)
-            `;
+            const query: string = `INSERT INTO book_chapter_content (content_id, chapter_id, author_id, version, content, words_count, time_on_it, last_update) VALUES (?, ?, ?, ?, ?, ?, ?, ?)`;
             const params: SQLiteValue[] = [contentId, chapterId, authorId, version, content, wordsCount, timeOnIt, lastUpdate];
             const insertResult: RunResult = db.run(query, params);
             return insertResult.changes > 0;
@@ -324,8 +319,7 @@ export default class ChapterContentRepository {
             const db: Database = System.getDb();
             const query: string = 'SELECT content_id, chapter_id, author_id, version, content, words_count, time_on_it, last_update FROM book_chapter_content WHERE content_id = ?';
             const params: SQLiteValue[] = [contentId];
-            const completeChapterContent: BookChapterContentTable[] = db.all(query, params) as BookChapterContentTable[];
-            return completeChapterContent;
+            return db.all(query, params) as BookChapterContentTable[];
         } catch (error: unknown) {
             if (error instanceof Error) {
                 throw new Error(lang === 'fr' ? `Impossible de récupérer le contenu de chapitre complet.` : `Unable to retrieve complete chapter content.`);
diff --git a/lib/locales/en.json b/lib/locales/en.json
index 63a057b..1fcd0ec 100644
--- a/lib/locales/en.json
+++ b/lib/locales/en.json
@@ -450,6 +450,7 @@
     "characters": "Characters",
     "objectsList": "Objects list",
     "bookGoals": "Book goals",
+    "quillsense": "QuillSense Settings",
     "save": "Save",
     "notAvailable": "Option not available"
   },
@@ -489,6 +490,7 @@
     "title": "Ghost Writer",
     "description": "Turn your ideas into captivating prose",
     "subscriptionRequired": "You must be subscribed to Quill Sense to use Ghost Writer.",
+    "quillsenseDisabled": "QuillSense is disabled for this book. You can enable it in the book settings.",
     "subscribe": "Subscribe",
     "length": "Text length",
     "minimum": "Minimum",
@@ -768,7 +770,8 @@
     "locations": "Locations",
     "characters": "Characters",
     "objects": "Objects",
-    "goals": "Goals"
+    "goals": "Goals",
+    "quillsense": "QuillSense"
   },
   "basicInformationSetting": {
     "error": {
@@ -829,7 +832,8 @@
   "common": {
     "cancel": "Cancel",
     "confirm": "Confirm",
-    "unknownError": "An unknown error occurred"
+    "unknownError": "An unknown error occurred",
+    "loading": "Loading..."
   },
   "editor": {
     "error": {
@@ -993,5 +997,22 @@
     "deleteLocalToo": "Also delete local version",
     "deleteLocalWarning": "Warning: This action will delete the book from the server AND your device. This action is irreversible.",
     "errorUnknown": "An unknown error occurred while deleting the book."
+  },
+  "quillSenseSetting": {
+    "title": "QuillSense Settings",
+    "description": "Manage AI features for this book.",
+    "enableSection": "Enable/Disable QuillSense",
+    "enableLabel": "QuillSense enabled",
+    "enableDescription": "When enabled, AI features like Ghost Writer and QuillSense will be available for this book.",
+    "advancedSection": "Advanced Settings",
+    "advancedPromptLabel": "Advanced Prompt",
+    "advancedPromptPlaceholder": "Enter custom instructions for the AI...",
+    "advancedPromptHint": "These instructions will be included in every text generation for this book.",
+    "disabledWarning": "QuillSense is disabled. AI features will not be available for this book.",
+    "errorFetch": "Error fetching QuillSense settings.",
+    "errorSave": "Error saving settings.",
+    "errorUnknown": "An unknown error occurred.",
+    "successSave": "QuillSense settings saved successfully.",
+    "noBookSelected": "No book selected."
   }
 }
\ No newline at end of file
diff --git a/lib/locales/fr.json b/lib/locales/fr.json
index af4c6c4..45da365 100644
--- a/lib/locales/fr.json
+++ b/lib/locales/fr.json
@@ -450,6 +450,7 @@
     "characters": "Les personnages",
     "objectsList": "Liste des objets",
     "bookGoals": "Objectifs du livre",
+    "quillsense": "Parametres QuillSense",
     "save": "Sauvegarder",
     "notAvailable": "Option non disponible"
   },
@@ -489,6 +490,7 @@
     "title": "Écrivain Fantôme",
     "description": "Transformez vos idées en prose captivante",
     "subscriptionRequired": "Vous devez être abonné à Quill Sense pour utiliser Ghost Writer.",
+    "quillsenseDisabled": "QuillSense est désactivé pour ce livre. Vous pouvez l'activer dans les paramètres du livre.",
     "subscribe": "S'abonner",
     "length": "Longueur du texte",
     "minimum": "Minimum",
@@ -769,7 +771,8 @@
     "locations": "Emplacements",
     "characters": "Personnages",
     "objects": "Objets",
-    "goals": "Buts"
+    "goals": "Buts",
+    "quillsense": "QuillSense"
   },
   "basicInformationSetting": {
     "error": {
@@ -830,7 +833,8 @@
   "common": {
     "cancel": "Annuler",
     "confirm": "Confirmer",
-    "unknownError": "Une erreur inconnue est survenue"
+    "unknownError": "Une erreur inconnue est survenue",
+    "loading": "Chargement..."
   },
   "editor": {
     "error": {
@@ -994,5 +998,22 @@
     "deleteLocalToo": "Supprimer également la version locale",
     "deleteLocalWarning": "Attention : Cette action supprimera le livre du serveur ET de votre appareil. Cette action est irréversible.",
     "errorUnknown": "Une erreur inconnue est survenue lors de la suppression du livre."
+  },
+  "quillSenseSetting": {
+    "title": "Paramètres QuillSense",
+    "description": "Gérez les fonctionnalités d'intelligence artificielle pour ce livre.",
+    "enableSection": "Activer/Désactiver QuillSense",
+    "enableLabel": "QuillSense activé",
+    "enableDescription": "Lorsque activé, les fonctionnalités d'IA comme Ghost Writer et QuillSense seront disponibles pour ce livre.",
+    "advancedSection": "Paramètres avancés",
+    "advancedPromptLabel": "Invite avancée",
+    "advancedPromptPlaceholder": "Entrez des instructions personnalisées pour l'IA...",
+    "advancedPromptHint": "Ces instructions seront incluses dans chaque génération de texte pour ce livre.",
+    "disabledWarning": "QuillSense est désactivé. Les fonctionnalités d'IA ne seront pas disponibles pour ce livre.",
+    "errorFetch": "Erreur lors de la récupération des paramètres QuillSense.",
+    "errorSave": "Erreur lors de la sauvegarde des paramètres.",
+    "errorUnknown": "Une erreur inconnue est survenue.",
+    "successSave": "Paramètres QuillSense sauvegardés avec succès.",
+    "noBookSelected": "Aucun livre sélectionné."
   }
 }
\ No newline at end of file
diff --git a/lib/models/Book.ts b/lib/models/Book.ts
index fd49ef4..9522578 100644
--- a/lib/models/Book.ts
+++ b/lib/models/Book.ts
@@ -71,6 +71,7 @@ export interface BookProps {
     coverImage?: string;
     localBook?: boolean;
     chapters?: ChapterProps[];
+    quillsenseEnabled?: boolean;
 }
 
 export interface BookListProps {
@@ -87,6 +88,7 @@ export interface BookListProps {
     coverImage?: string;
     bookMeta?: string;
     itIsLocal?: boolean;
+    quillsenseEnabled?: boolean;
 }
 
 export interface GuideLine {
diff --git a/lib/models/BookTables.ts b/lib/models/BookTables.ts
index d6632cf..d953d01 100644
--- a/lib/models/BookTables.ts
+++ b/lib/models/BookTables.ts
@@ -194,4 +194,11 @@ export interface LocationSubElementTable {
     original_name: string;
     sub_elem_description: string | null;
     last_update: number;
+}
+
+export interface GhostWriterSettingsTable {
+    book_id: string;
+    user_id: string;
+    advanced_prompt: string | null;
+    quillsense_enabled: number;
 }
\ No newline at end of file