Black Water by Louise Doughty

Hiding in a rural Balinese hut during the 1998 unrest, a morally compromised operative grapples with the secrets of his past in 1960s Indonesia, where he worked for a shadowy Western-backed security outfit during the anti-communist purges. As he anticipates the possibility of being hunted down, he revisits a complicated childhood and a recent love affair in California that offered a glimpse of redemption, confronting guilt, identity, and the cost of complicity in political violence.

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