Some buildings hold more than weight.
Structural engineer Marcus Vane finds the error on a Tuesday. One decimal place. A shear connection rated at a tenth of the load it needs to carry, in the east wing of a seventy-two-story building that people will eventually stand inside of.
He has eleven days before the steel is cut. He says nothing.
Five years later, the east wing of the Aerie collapses.
The Geometry of Guilt follows Sarah Vane... archivist, structural investigator, Marcus's sister... as she reconstructs not just what failed in the building, but what failed in the man she thought she knew completely. Working from her brother's field notebooks, a forty-two-page supplementary finding buried in a city archive, and the testimony of people who were present when the calculation was signed off, Sarah begins to understand that the error was not the only thing that was known and not reported.
Someone else knew. And unlike Marcus, they made a choice.
Precise, atmospheric, and morally relentless, The Geometry of Guilt is a psychological thriller about institutional silence, the architecture of professional loyalty, and what it means to carry a decision inside you until it becomes load-bearing. Set against the backdrop of a building site where every number has consequences, it asks the question that haunts every cover-up: at what point does silence become its own kind of act?
For readers of Slow Horses, The Firm, The Thursday Murder Club, and The Silent Patient.
This is a work of fiction. All characters, organisations, and events are entirely imaginary. Any resemblance to real persons or actual events is coincidental.