This grand hall is ten feet wide and twenty-five feet long. A large metal door stands at the west end of this entry, while three other metal doors stand in the walls at the opposite end. The middle door is slightly smaller than the others, and a metal wheel is mounted in the center of each door.  While nothing moves in this entrance hall, the entire tower seems to thrum and hiss, creating a great deal of background noise, and masking any quieter sounds in the building.<br/><br/>"Always multiple paths," the kitsune complained, as she saw the three doors at the end of the hall. "Can never make it easy, can they?"