At Mercy General, ER doctor Mara Ellison is used to chaos, exhaustion, and death. What she is not used to is the dead moving. It starts with small things: a twitching hand, a body shifting under a sheet, a morgue drawer found open from the inside. The explanations are clinical at first - residual nerve activity, muscle memory, stress, lack of sleep. But the incidents keep happening, and they are getting worse. Beyond the hospital walls, Jonah Pike is tracking a different kind of warning sign at the city's port: sick crews, delayed ships, strange patterns in the data, and a spreading illness that does not behave like any normal flu. Across the city, ordinary people are starting to feel the first tremors of panic as rumors spread faster than official answers. As hospitals fill, bodies accumulate, and the line between death and movement begins to blur, Mara and a handful of others are forced to confront a terrifying possibility: whatever is coming did not start in the hospital - but it may end there. Cold Harbor is a tense, atmospheric horror novel blending medical dread, outbreak terror, and creeping undead menace into a relentless slow-burn nightmare.