The Dome has always kept the world safe.

Or so everyone believes.

Its reluctant caretaker has spent the last decade maintaining its endless machinery, asking for nothing except to be left alone. But when an urgent summons pulls him into a crisis no one can explain, he discovers that the greatest threat isn't outside the Dome—it's the secrets woven into its foundations.

Now, with time running out and the past refusing to stay buried, he must unravel a mystery that challenges everything he has ever believed about duty, family, and the world itself.

Because somewhere beyond everything he knows is a single life connected to his own in ways he cannot begin to imagine.

And saving that stranger may be the only way to save them all.