Spyfall Part 1 and 2
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Browning was a human member of the Australian Secret Service.
Together with another agent, Seesay, she was tasked with protecting O at his house in the Australian Outback.
Later that evening she said, despite the vast emptiness, she felt something was watching them. Seesay and her then investigated the perimeter of the site when some movement sensors were triggered.
Splitting up Blackwood was further unnerved when more movement sensors where turning on and off. Suddenly the figure of a Kasaavin appeared in the distance and Blackwood shot at it. When Seesay rejoined her a whole crowd of Kasaavin had appeared who them, apparently, attacked and killed them. (Spyfall)