"Slow," Galen said coldly. "Way too slow. If I'd have put more effort into the spell, it'd have broken through."
He lifted his wand again and this time he tapped himself on the head with it, murmuring the incantation of the disillusionment charm. It was the same tactic he'd used against Kid, and one that had always proved useful in his duels. And definitely one that ought to give this kid a real challenge. In the dim light of the dungeon, Galen was almost impossible to see, and he slowly began walking around Melvin.