London is a city of secrets-some buried deeper than others.

Archibald Chesterfield is a historian, not a detective. But when a priceless painting vanishes from a London museum under suspicious circumstances, Archie is pulled into a mystery far more perilous than anything he's ever studied.

The theft points to whispers of the Hollowed Coin-an elusive organization tied to missing artifacts, coded journals, and histories the world was never meant to uncover.

With his brother Teddy, a sharp-witted civil servant, and Eddie Mason, a detective haunted by his past, Archie follows a trail from London's shadowed streets to the ruins of a lost civilization. Along the way, he'll confront secrets that refuse to stay hidden-and enemies who will stop at nothing to keep them buried.