An acclaimed novelist lost his office in Carson City on Thursday when he threw a lit piece of paper into gasoline.Fantasy writer David Eddings, 75, said he was using water to flush out the gas tank of his broken-down Excalibur sports car, when some fluid leaked. In a lapse of judgment he readily admitted, Eddings lit a piece of paper and threw into the puddle to test if it was still flammable. The answer came in an orange torrent.The fire raged through the garage and a quarter of the way into the office that occupies the lot next door to …