A SMART-LOOKING BELLBOY stepped forward, briskly took the key from the clerk, briskly nodded at Mooney and Harse. With the automatic reflex of any hotel bellhop, he reached for Harse’s silvery case. Baggage was baggage, however funny it looked. But Harse was not just any old guest. The bellboy got the bag away from him, all right, but his victory was purely transitory. He yelled, dropped the bag, grabbed his fist with the other hand. “Hey! It shocked me! What kind of tricks are you trying to do with electric suitcases?” Mooney moaned softly. The whole lobby was looking at them—even the conventioneers at the entrance to the ballroom; even the men in mufti mingling with the conventioneers, carrying cameras and flash guns; even the very doorman, the whole lobby away. That was bad. What was