While the purpose of your regularly scheduled March is unknown, an ancient tome known as a 'second edition D&D adventure' by the same name as the March. It was set in the Planescape series of AD&D modules to be precise. In this adventure, the demon lord of the Undead Orcus wanted to become a deity. As you do. He killed Primus and temporarily stole his clockwork throne.  An unpredicted march nearly 200 years ahead of schedule was enacted to search for the Wand of Orcus. This was Orcus' main weapon and, befitting his stature, considered a Major Artifact. It's so powerful that even touching it has a chance to kill you.