A fault line does not appear from nowhere.
It waits beneath the surface until pressure makes it visible.
Nadia and Callum thought they understood the shape of the Webb threat. Ferndene. Ellery. Hauf. A fraudulent model. A calculated attack on Ashford Partners.
Then the FCA reveals a second transaction.
A company tied to Callum's past.
A document that should never have left Ashford Partners.
And a director whose name changes everything.
Richard Ashford is not just another liability. He is Callum's brother.
As the investigation widens, Nadia finds herself pulled into a more dangerous kind of case, one where professional evidence and family history collide. Callum can analyse risk, expose structures, and face corporate enemies without flinching. But Richard is different. Richard is personal.
And personal secrets are harder to contain.
While Webb's architecture tightens around them, Nadia and Callum must decide how much truth a relationship can hold when the past begins speaking in someone else's voice.
Because this time, the threat is not only outside the firm.
It runs through blood, history, and the silence between two brothers.
The Fault Line is Book Three in the Devil in a Suit series, a dark billionaire office romance filled with corporate suspense, family secrets, emotional tension, forbidden workplace intimacy, and dangerous trust.
