The Castellano Letter: A Maya Sterling Thriller. Empire Of Evidence, #1

Some empires are built on land. Others are built in shadow and those are the ones that kill to stay hidden. Maya Sterling is America's most feared federal prosecutor: fifteen years, an undefeated record, and a courtroom instinct that always seems to find the one piece of evidence that ends a billionaire's reign. Hours after she puts away tech fraudster Marcus Chen, a private plane goes down over the Atlantic and a wax-sealed letter arrives that detonates everything she believed about her life.
Her husband Daniel was not a quiet finance executive named Sterling. He was Daniel Castellano, son of a murdered prosecutor, and for twenty-two years he secretly built a twenty-billion-dollar intelligence empire with one purpose: to hand Maya the evidence to convict the people the law could never touch. Now Daniel is dead, Maya has inherited it all, and the oligarch who killed him has given her seventy-two hours before he comes for her too.
Run and pray. Surrender to the FBI and guarantee her execution. Or pick up her husband's war and become something far more dangerous than a prosecutor. The clock is already running. The Castellano Letter is the explosive first book in Empire of Evidence.