Chu Yun and Lu Yun arrived in San Francisco in 1868 with something of a plan:Chu would get a job as a geologist for the railroad and his daughter Lu — well, that was unclear. But when the railroad hiring office made it clear that Chu would only be hired as a laborer, Lu then knew exactly what she would do: pretend to be a man and join her father. They were then assigned to a very important section of the railroad in Promontory, Utah — the section where the Transcontinental Railroad would be completed.

Note: Though this is historical fiction and the characters have been developed to accommodate a story, their attributes and development may be useful as reference points and inspirations.