Audrey Cheng is a secondary antagonist in book four Necropolis. She is introduced when Scarlett Adams arrives at Hong Kong airport and Scarlett takes an instant dislike to her.


Mrs. Cheng looks after Scarlett while she's in Hong Kong, although Cheng is strange, almost robotic and lifeless. Later on Mrs Cheng is killed by Lohan's men and revealed to be a shape changer working for the Old Ones, as her severed head changes back into that of a lizard-like creature. Scarlett says " it makes her feel sick to think that she was a shape-changer all along".


She is described as having the physique of a man with broad shoulders.


Mrs.Cheng is shown as strange, almost robotic and lifeless.

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