Nevada author keeps great-grandfather’s Oz alive “(My) biggest challenge has been to not insult Oz fans,” Baum told the Las Vegas Sun. “There’s a certain magnetic feeling connected to the love, heart and courage in the books. I try to keep that theme with no violence.” Baum’s home office pays homage to the world his great-grandfather created. A Yellow Brick Road street sign marks the entrance. Inside are Oz picture frames and Oz figurines; the bookshelf contains every Oz book his great-grandfather wrote. Baum initially refused to write Oz books out of fear that it would be too presumptuous of him. It wasn’t until a friend challenged him during a dinner that he changed his mind.