diff --git a/src/windows-harry-potter.html b/src/windows-harry-potter.html
new file mode 100644
index 0000000..1c8c720
--- /dev/null
+++ b/src/windows-harry-potter.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>404 Not Found</title>
+  <link rel="icon" type="image/x-icon" href="{{ "favicon.ico" | relURL }}" />
+  <style>
+    * {
+      margin: 0;
+      padding: 0;
+      box-sizing: border-box;
+    }
+
+    html, body {
+      height: 100%;
+      width: 100%;
+      font-family: monospace;
+      color: #FFFFFF;
+      background-color: #0000AA;
+    }
+
+    .container {
+      display: flex;
+      flex-direction: column;
+      justify-content: center;
+      min-height: 100vh;
+      align-items: start;
+      text-align: left;
+      max-width: 800px;
+      margin: 0 auto;
+      padding: 2rem;
+    }
+
+    h1 {
+      font-size: 2.5rem;
+      margin-bottom: 2rem;
+    }
+
+    .error-message {
+      font-size: 1.3rem;
+    }
+
+    .error-message a {
+      color: #FFFFFF;
+    }
+  </style>
+</head>
+<body>
+  <div class="container">
+    <h1>404 - The Page That Must Not Be Named</h1>
+    <div class="error-message">
+      It seems you've stumbled upon a forbidden corridor.<br>
+      Let's get you back to a safer place, shall we?<br><br>
+      Maybe you were looking for the <a href="https://blog.amundsson.eu">library</a> or the <a href="https://niklas.amundsson.eu">history</a> classroom?
+    </div>
+  </div>
+</body>
+</html>
\ No newline at end of file
