A hidden bunker. A forgotten signal. A secret worth killing for.Dispatched to a remote island scarred by Cold War history, SERA agents Grant Colson and Luis Fontaine are tasked with uncovering the source of an uncharted transmission. What they find among the ruins could expose one of the last great mysteries of a vanished world power-and change everything they know about the past.In a place abandoned by time, the real threat isn't what waits in the ruins - it's what still moves in the dark.Inspired by real Cold War-era transmissions and long-buried secrets.Includes a behind-the-scenes historical note and field gear specs for readers who want to dig deeper into the real-world tech and secrets that inspired the story

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