Bink stepped toward her, alarmed. But even as he moved, there was loud juvenile laughter. Sabrina whiffed furiously. "Numbo, you stop that!" she cried. She was one of those girls who was as appealing in anger as in joy. "It's not funny."

       It was, of course, Numbo who had given her a magical hotseat, a fiery pain in the posterior. Talk about a useless talent! Bink, his fists clenched so tightly that his thumb jammed into the stub of his missing finger, strode toward the grinning youth standing behind Lookout Rock. Numbo was fifteen, cocky and annoying; he needed a lesson.

       But Bink's foot struck a loose rock, which turned his ankle long enough to cost him his balance. It didn't hurt, but it interrupted his forward progress. His hand swung forward-and his fingers touched an invisible wall.

       There was another shout of laughter. Bink hadn't crashed headlong into the wall, thanks to the providential stone under his foot, but evidently someone thought he had.

       "You too, Chilk" Sabrina said. That was Chilk's talent: the wall. It was a kind of complement to Sabrina's talent; instead of being visible without substance, it had substance without visibility. It was only six feet square; and, like so many talents, it was strictly temporary-but it was hard as steel in the first few moments.

       Bink could dodge around it and run the kid down-but he was sure to get caught several times by that re-manifesting wall, and suffer more damage than be could do to the boy. It wasn't worth it. If only he had a talent of his own, such as Numbo's hotseat, he could make the joker sorry regardless of the wall But he didn't, and Chilk knew it. Everyone knew it. That was Bink's big problem. He was fair game for all the pranksters, because he couldn't strike back-not magically, and it was deemed crass to do it physically. Right now he was quite ready to be crass, however.