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Shtama kills the owner of the NeedWant - Amanda's sister - by poisoning her. She does it because Datak tells her to in order to get his forgiveness. It does read a bit as a crime that Muslims do - an "honor killing" which is confusing because a. they live in a caste system, which is usually Hindu, and b. regardless Shtama is in a higher caste than Datak, so I find it sad she thinks she's subservient