diff --git a/token.module b/token.module
index ff0c3db..17d95da 100644
--- a/token.module
+++ b/token.module
@@ -617,10 +617,13 @@ function token_element_children(&$elements, $sort = FALSE) {
  *   The 'p1' ... 'p9' keys point to parents of the page, if they exist, with 'p1'
  *   pointing to the book itself and the last defined pX to the current page.
  *
+ * @param string $langcode
+ *   The langcode in which parents should be loaded.
+ *
  * @return string[]
  *   List of node titles of the book parents.
  */
-function token_book_load_all_parents(array $book) {
+function token_book_load_all_parents(array $book, $langcode = NULL) {
   $cache = &drupal_static(__FUNCTION__, []);
 
   if (empty($book['nid'])) {
@@ -632,7 +635,11 @@ function token_book_load_all_parents(array $book) {
     $cache[$nid] = [];
     $i = 1;
     while ($book["p$i"] != $nid) {
-      $cache[$nid][] = Node::load($book["p$i"])->getTitle();
+      $node = Node::load($book["p$i"]);
+      if ($langcode) {
+        $node = \Drupal::service('entity.repository')->getTranslationFromContext($node, $langcode);
+      }
+      $cache[$nid][] = $node->getTitle();
       $i++;
     }
   }
diff --git a/token.tokens.inc b/token.tokens.inc
index 7b2e2cf..dbc67bd 100755
--- a/token.tokens.inc
+++ b/token.tokens.inc
@@ -1227,6 +1227,9 @@ function book_tokens($type, $tokens, array $data, array $options, BubbleableMeta
     if (!empty($book['bid'])) {
       if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'book')) {
         $child_node = Node::load($book['nid']);
+        if (!empty($options['langcode'])) {
+          $child_node = \Drupal::service('entity.repository')->getTranslationFromContext($child_node, $options['langcode']);
+        }
         $replacements += \Drupal::token()->generate('book', $book_tokens, ['book' => $child_node], $options, $bubbleable_metadata);
       }
     }
@@ -1237,7 +1240,9 @@ function book_tokens($type, $tokens, array $data, array $options, BubbleableMeta
 
     if (!empty($book['bid'])) {
       $book_node = Node::load($book['bid']);
-
+      if (!empty($options['langcode'])) {
+        $book_node = \Drupal::service('entity.repository')->getTranslationFromContext($book_node, $options['langcode']);
+      }
       foreach ($tokens as $name => $original) {
         switch ($name) {
           case 'root':
@@ -1248,12 +1253,15 @@ function book_tokens($type, $tokens, array $data, array $options, BubbleableMeta
           case 'parent':
             if (!empty($book['pid'])) {
               $parent_node = Node::load($book['pid']);
+              if (!empty($options['langcode'])) {
+                $parent_node = \Drupal::service('entity.repository')->getTranslationFromContext($parent_node, $options['langcode']);
+              }
               $replacements[$original] = $parent_node->getTitle();
             }
             break;
 
           case 'parents':
-            if ($parents = token_book_load_all_parents($book)) {
+            if ($parents = token_book_load_all_parents($book, $options['langcode'] ?? NULL)) {
               $replacements[$original] = token_render_array($parents, $options);
             }
             break;
@@ -1268,10 +1276,13 @@ function book_tokens($type, $tokens, array $data, array $options, BubbleableMeta
       }
       if (!empty($book['pid']) && $book_tokens = \Drupal::token()->findWithPrefix($tokens, 'parent')) {
         $parent_node = Node::load($book['pid']);
+        if (!empty($options['langcode'])) {
+          $parent_node = \Drupal::service('entity.repository')->getTranslationFromContext($parent_node, $options['langcode']);
+        }
         $replacements += \Drupal::token()->generate('node', $book_tokens, ['node' => $parent_node], $options, $bubbleable_metadata);
       }
       if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'parents')) {
-        $parents = token_book_load_all_parents($book);
+        $parents = token_book_load_all_parents($book, $options['langcode'] ?? NULL);
         $replacements += \Drupal::token()->generate('array', $book_tokens, ['array' => $parents], $options, $bubbleable_metadata);
       }
     }