I found this magical pen, drew a door and opened it.  I walked through to the other side.   I walked into a beautiful and mysterious forest with lights and wondrous lanterns.  There was a glittering river flowing silently through this mysterious forest, leading out of it.  I followed it and came to a pontoon and I drew a boat.  I got in and sailed northwards.  I sailed for a few hours and came to the most incredible thing ever – this huge castle with gold pillars and iron walls.    An ancient civilisation, cast into a magical world by an unknown entity, that could only be opened by the mysterious and magical pen.   The castle was surrounded by murky and marshy water.  The gates opened and I went in and along a long and dirty tunnel under the city.  Suddenly, I came into a surge of light and I was in the city.