Book Three of the Ben Friar Files.
The lost are not buried. They are collected.
Eleven years ago, Benedict Friar's own service took his mind apart in a quiet house above a cold grey sea and rebuilt it into the perfect instrument - a man who cannot stop watching a room, cannot stop reading the lie under a smile, and can no longer remember who he was before they made him. Now, at last off the books, he has come south to the Riviera to attempt the one thing they never taught him: to be no one's weapon, and do nothing at all.
He is not good at it.
Then Kit Tremaine walks back into his life, and a single golden day on the empty hill roads ends at a travelling circus - where a magician leads her into a black lacquered box and closes the door.
To rescue her, Friar must become again the thing he fled. The hunt drags him across the sea and into the desert, into the hands of a man who buys up the world's discarded spies and sells their use very dear - and on, towards a gilded Alpine hall where the crowned heads of Europe are gathering for a wedding, and a one-off secret weapon waits in the dark for its hour.
Every road back to Kit - and to the buried truth of who he once was - runs straight through the trade he swore he had left. And there is always a coin to pay for the crossing.