The next morning, the office was in an uproar. Mr. Henderson had been arrested at Heathrow for embezzlement. By noon, the board appointed Mark as the interim head of the department.

If you'd like, I can provide a detailed summary of Jeffrey Archer's actual book of the same name.

He had gotten exactly what he asked for: he was no longer the head of the department, and he certainly had no more debts to pay. He was going to a place where his needs would be provided for, and where Elena could never find him. A prison cell.

As they led him out, Mark looked back at his desk. The journal was gone. In its place was a mirror. He saw his own reflection—older, tired, and trapped.

(Modern London, historical setting, or a specific city?)

That night, half-drunk on cheap Scotch, he scribbled in the back of the book: I wish my boss, Mr. Henderson, would disappear so I could take his corner office.

Mark lived for the "deal." As a mid-level acquisitions and mergers consultant, he spent his days eyeing other people’s fortunes, waiting for his own. His tiny London flat was a gallery of expensive things he couldn't quite afford—a vintage Rolex, a silk rug, and a collection of rare books he never read.

The corner office came with Henderson’s hidden debts. Men in dark suits began calling Mark’s personal phone, demanding millions he didn't have. And Elena? Her love was suffocating. She began tracking his phone, showing up at his gym, and demanding marriage within a month.