Raina Lu hadn't expected Mason Han to actually cook. Not much left in the fridge—tomatoes, eggs, ham, one head of cabbage. Mason Han found a blue-and-white checkered apron from somewhere, quickly chopped tomatoes, ham, and cabbage, and started the wok. Mason Han moved fast. Head lowered, knife work carried the same focus as when he worked. Under that concentration his near-perfect profile had an indescribable quality. The stir-fry was quick. Before long Mason Han brought out two plates. Tom...