"Magic has some really weird limitations," he comments. "The book also mentioned something called a 'Philosopher's Stone' that could turn base metals into gold, but it said that the only known maker of this Stone thing died a few years ago and that the Stone was destroyed." He looks up from his notepad, pocketing it. "I wonder why no one ever made another one of it? Apparently that's not a hard limit of magic, if there's some workaround."