At the climax of the game, It became visible and tangible, and any player character looking upon it had his or her sanity pushed to its limits. Madness was a real possibility.
So, I asked each player who decided to look (three out of four) and whose character failed the abysmally high Horror Factor check (all of those who looked at it, as it turns out) to make a roll under their character's Mental Endurance score.
The first made it with a critical roll (a natural 1, since they needed to roll low); the second failed and would face temporary insanity; and the third, well... herein lieth a lesson, my children:
Player: I automatically pass - my ME's 23.
Me: Nope - you still have to roll. You could roll a fumble - a natural 20.
Player (rolling his eyes and rolling the die): Not a problem!
Every person at the table - including the player in question, who - too late - recognized his hubris - knew from the moment the die fell casually from his fingertips what the result was going to be:
The moral of today's lesson: the Dice Gods giveth, and the Dice Gods taketh away. And perhaps most importantly: the Dice Gods do not suffer hubris lightly.
. . . . .