- It marks the two year anniversary of Gygax's passing
- It is GM's Day
Therefore, a party of the bravest and most powerful adventurers has been assembled and given the charge to punish the miscreant giants. These adventurers must deliver a sharp check, deal a lesson to the clan of hill giants nearby, or else return and put their heads upon the block for the headsman's axe!
That last sentence there is underlined in pencil in my copy of the module. Why? Because it's bad ass.
Thanks for the game, Gary.