diff --git a/resources/public/javascript/tryclojure.js b/resources/public/javascript/tryclojure.js
index 4e04303..1516618 100644
--- a/resources/public/javascript/tryclojure.js
+++ b/resources/public/javascript/tryclojure.js
@@ -31,6 +31,9 @@ var pages = [
     {
         verify: function (data) { return data.expr == "(map inc [1 2 3 4])"; }
     },
+    {
+        verify: function (data) { return data.expr == "(:zar h \"not found\")"; }
+    },
     {
         verify: function (data) { return false; }
     }
diff --git a/resources/public/tutorial/page11.html b/resources/public/tutorial/page11.html
index da67d0a..9cfe5cf 100644
--- a/resources/public/tutorial/page11.html
+++ b/resources/public/tutorial/page11.html
@@ -1,8 +1,19 @@
-<p>Excellent work.</p>
-
 <p>
-  Well, that's all there is right now. This tutorial is still a work in progress, and I'm working on more
-  steps. If anybody wants to contribute, you can find a link to the Github repository on the 'about' page.
-  Furthermore, if you're just a brand new Clojure developer looking for some learning experiences, check
-  out the 'links' page. You'll find links to some tutorials and such there.
+  Let's define a hash-map as we seen earlier:<br/>
+  <code class="expr">(def h {:foo "buu" :bar "bazz"})</code>
+</p>
+<p>
+  Now try some of this magic:<br/>
+  <code class="expr">(:bar h "not found")</code>
+</p>
+<p>
+  This is actually a convenient version of <code class="expr">(get h :bar "not found")</code> and it
+  says:
+</p>
+<p>
+  "Give me the value associated with the key <code class="expr">:bar</code> if it exists in the map,
+  or else the string <code class="expr">"not found"</code>".
+</p>
+<p>
+  Try <code class="expr">(:zar h "not found")</code> to continue.
 </p>
diff --git a/resources/public/tutorial/page12.html b/resources/public/tutorial/page12.html
new file mode 100644
index 0000000..da67d0a
--- /dev/null
+++ b/resources/public/tutorial/page12.html
@@ -0,0 +1,8 @@
+<p>Excellent work.</p>
+
+<p>
+  Well, that's all there is right now. This tutorial is still a work in progress, and I'm working on more
+  steps. If anybody wants to contribute, you can find a link to the Github repository on the 'about' page.
+  Furthermore, if you're just a brand new Clojure developer looking for some learning experiences, check
+  out the 'links' page. You'll find links to some tutorials and such there.
+</p>