--- /dev/null
+=============================
+ Appendix B -- "Heidi" story
+=============================
+
+Heidi in the Forest is our first -- and simplest -- game. We describe it in
+three chapters: "Heidi: our first Inform game" on page 33, "Reviewing the
+basics" on page 49 and "Heidi revisited" on page 59. Here is a run-time
+transcript, and then the original and extended source files.
+
+Transcript of play
+==================
+
+.. literalinclude:: /examples/Heidi.txt
+ :language: transcript
+
+Game source code -- original version
+====================================
+
+.. literalinclude:: /examples/Heidi.inf
+ :language: inform6
+
+Game source code -- revisited
+=============================
+
+.. literalinclude:: /examples/HeidiPlus.inf
+ :language: inform6