Nothing happened that evening; Mark and his friends passed their time in serene unconsciousness of any danger, merrily discussing the latest hazing effort of the enemy. Bull Harris and his crowd did not put in appearance, or try to put their plot into execution, for the simple reason that there was no chance. The first "whack," so to speak, was scheduled for the A. M. inspection the next day. The only inspection at night is made by a "tac"--a practical officer--who goes the rounds with a dark lantern after taps to make sure that no plebes have been run away with.