he went into a large department store and took an escalator up to the toy department , which was dominated by a huge electric train display-green plastic hills honeycombed with tunnels , plastic ( rain stations , overpasses , underpasses , switching points , and a lionel locomotive that bustled through all of it , puffing ribbons of synthetic smoke from its stack and hauling a long line of freight carsbb1.0 , soo line , great northern , great western , warner brothers warner brothers ? ?