Chang and San Mao started corresponding, then grew to be close friends. San Mao's first wash painting still hangs on a wall in Chang's home. Both the painting and the wall have grown old. "But I'd never sell it, no matter what," says Chang, his voice husky.
三毛和張拓蕪則先成了筆友，又從筆友變成知交，三毛的第一張水墨畫至今還掛在張拓蕪家牆上，牆與畫俱老矣，「但無論怎樣我都不會賣，」張拓蕪啞著嗓說。