Meet the twins.

Ming and Wah Chen are a pair of Chinese-American identical twins who love history, plucky heroes, and anything by Agatha Christie. Graduates of Harvard and Columbia Universities respectively, they live in Hong Kong and Los Angeles.

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They are the co-authoresses of three children's books - Escape: One Day We Had to Run, Sassparilla's New Shoes, and Ling Ling Looked In The Mirror. Ming and Wah also made cameo appearances as twin vampires Deming and Dehua in the YA series Blue Bloods.