Yep uses the lively storytelling techniques of his "Dragon" fantasy-adventure novels to re-create a stirring historical event-here, the construction of the transcontinental railroad. Serpent's Children (1984) and Mountain Light (1985, both HarperCollins) described the political and natural disasters that led to widespread famine in 19th-century Southern China. Cassia and Foxfire, the "Serpent's Children," came from a long line of revolutionaries. Foxfire followed his dreams across the sea to the "Golden Mountain," California, where he earned enough money to revitalize his village. Dragon's Gate opens in China with Foxfire making a triumphant visit home. Otter, Cassia's adopted son, who tells the story, worships his uncle and longs to follow him back to the Golden Mountain. Granted his wish at last, Otter finds Foxfire working on "Snow Tiger," a mountain in the Sierra Nevada range, where Chinese laborers strive to hew a tunnel through solid rock. Appalled by the living conditions and disillusioned with his uncle, Otter must struggle to survive racial prejudice, cold, starvation, the foreman's whip, and the dangers of frostbite and avalanche while trying to reconcile his ideals and dreams with harsh reality, and to find his place in a strange land. Combining believable characters with thrilling adventure, Yep convinces readers that the Chinese railroad workers were indeed men to match the towering mountains of the west. Because the first few chapters, set in China, may be a bit confusing to children who have not read the previous two books, this will likely need booktalking. Margaret A. Chang, North Adams State College, MA Copyright 1994 Reed Business Information, Inc.