Who is Emily Fields from Heartless and what is their importance?

Emily Fields is another one of the four girls that is best friends with Ali. From the text messages Emily receives, she winds up impersonating a Dutch Amish girl in Lancaster, Pennsylvania. While she is undercover there, Emily finds out that the police officer, Darren Wilden, is Amish. He ran away and when his girlfriend followed him, she wound up missing. This information leads Emily to believe that Darren killed both his girlfriend and Ali.

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