Rock Won't Move

Jack and Hitch are accomplished Professors at the exclusively private Hillary University located in the beautiful rolling hills of Pennsylvania, but that is the extent of their commonality. That is, until a "large stone-like object, pure white and without blemish" suddenly appears in the middle of the campus Courtyard. How were they to know it is intended for them? Whatever it is... it is big and it is in the way. With a highly anticipated, and nationally publicized, lecture taking place in three weeks, it could not have popped up at a worse time. Charlie and his crew attempt to get rid of it but it won't budge. In fact, in their effort to remove it they discover it is not even touching the ground! Why here? Why now? Who sent it?