Square wave

"Carl Stagg, a writer researching imperial power struggles in 17th century Sri Lanka, ekes out a living as a watchman in a factionalized America where confidence in democracy has eroded. Along his nightly patrol, Stagg finds a beaten prostitute, one in a series of monstrous attacks. Suspicious of his supervisor's intentions, Stagg partners with a fellow part-time watchman, Ravan, to seek the truth. Ravan hails from a family developing storm-dispersal technologies, whose research is jointly funded by the Indian and American governments. The watchmen's discoveries put a troubling complexion on Stagg's research, giving it new shape and impetus, just as the weather modification project begins to appear less about dispersing storms than weaponizing them."--provided by publisher.