He descends to a crouch. There is a hard, stable surface beneath his feet. To 
his hand, his left hand, it feels rough and gritty, like concrete. Is that part 
of the illusion, or a flaw in it? The latter, he suspects. Fooling his eyes and ears is 
one thing; also deceiving his sense of touch and his sense of his own body would 
be much more difficult. The more senses that must be fooled, the greater the 
magic required. A mage intent on merely neutralizing him would have no need to 
go to such lengths.