He nodded and I heard a muffled rumble of thunder as the troll sank to one knee behind me. "Golnartac, despite his size, has an exquisite sense of delicacy. You won't know when, but at any one of a dozen prearranged signals he will hit a portion of your anatomy with a swift, precise blow. He'll only use one finger, but you will find the blows most painful. He may stab a talon through a nerve center, or he may shatter a vertebrae."