An unsolved murder. A lost artifact. A secret buried beneath the floodwaters of history…

During the catastrophic Dutch flood of 1953 – the Watersnoodramp – more than 1,800 lives were lost to the fury of the North Sea. But amid the devastation, one death went unnoticed... a murder disguised by disaster.

Seven decades later, a skeleton is uncovered in the silted remains of a drowned village. Clutched in its grasp lies a mysterious artifact – one that may unlock the location of the mythical Shield of Hercules, a relic of untold power hidden since the ancient world.

When Sam Reilly is called in to unravel the mystery, he finds himself in the crosshairs of those willing to kill to keep the past buried.

But the true danger isn’t the assassins on his trail – it’s the secret the shield was built to protect.

Because whatever claimed a life in 1953... is ready to kill again.