A thirty-nine-day war between the United States and Iran ends the way modern wars end now: not in surrender, but in a memorandum. The guns go silent. The money is promised. The world exhales.

Buried within the language of the peace are nineteen words that quietly abandon the people who believed the bombing meant deliverance.

In Washington, a small policy institute that has spent its life describing the world decides, for the first time, to act on it, and learns that the line between analysis and operation, once crossed, cannot be uncrossed.

In Tehran, an air-defense colonel runs the only arithmetic that has ever governed his life, weighing the family the regime holds against a door that may not be real. In a blacked-out city, a nurse keeps a count the state intends to erase, while an organizer discovers that the most dangerous thing a broken country can do is begin to hope.

As a sixty-day clock counts down to the vote that will make the peace permanent, three lives on opposite sides of a sealed border move toward a single decision and toward a question no government can answer for them: What is owed to the people you cannot save?

The Closing Window is a literary espionage thriller of statecraft, intelligence, political consequence, and moral responsibility. A novel about power, responsibility, and the narrowing distance between describing a catastrophe and becoming part of it.