As they continued downward, Hracin could almost see teh wheels turning in the student's mind.  He'd heard all the arguments.  But, the tricks worked in the long run.  Especially when one added in 'ghosts' via movement and sound magic.  The pests could be temporarily driven away, but they could return, and at less cost in energy or time.  But, each student needed to learn on his or her own.  And many were drawn to the flashier spells.<br/><br/>"And what are your plans for the day," he asked, as they came to the fourth floor.