As he neared the would-be thief - something he could tell by the faint glow of runes on the walls - he realised that it was a female. He grinned. He let the blade of his axe trail across the ground, causing a grating sound - metal on stone - to echo down the halls. If he wished so, he could be upon her in a minute. For now, he would trail her and direct her towards his chamber of secrets. And play with her  mind a little before hand.