Finally, Dr. Zollner leaned across his desk toward me and said in his slight accent, “Detective Corey, if you had the key to the gates of hell, would you open them? If you did, you should be a very fast runner.” I contemplated this a moment, then replied, “If opening the gates of hell is so unthinkable, then why do you need a lock and key?” He nodded and replied, “I suppose to protect us from madmen.”