1 files changed, 12 insertions, 2 deletions
diff --git a/lib/book.js b/lib/book.js
index ce368a3..913df2f 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -168,6 +168,8 @@ Book.prototype.parse = function() {
         }
 
         return Promise()
+
+        // Parse the readme
         .then(that.readme.load)
         .then(function() {
             if (that.readme.exists()) return;
@@ -175,13 +177,21 @@ Book.prototype.parse = function() {
             throw new Error('No README file (or is ignored)');
         })
 
+        // Parse the summary
         .then(that.summary.load)
         .then(function() {
-            if (that.summary.exists()) return;
+            if (!that.summary.exists()) {
+                throw new Error('No SUMMARY file (or is ignored)');
+            }
 
-            throw new Error('No SUMMARY file (or is ignored)');
+            // Index summary's articles
+            that.summary.walk(function(article) {
+                if (!article.hasLocation()) return;
+                that.addPage(article.filename);
+            });
         })
 
+        // Parse the glossary
         .then(that.glossary.load);
     });
 };