Phantom Seams - Vivienne Ashcroft

Four hundred and eleven people are about to die. The weapon is already in their hands. It cost forty thousand dollars, comes in lambskin, and it is beautiful.

CIPHER is burned. Off-book. Hunted. The institution is gone, the mole has been identified, and the man who built the unit that was supposed to stop LUXE turns out to be the architect of the very operation they have been racing to prevent. PHANTOM SEAM is a bioweapon delivery system - a precision nerve compound concealed inside four hundred and eleven luxury bags currently in the possession of heads of state, cabinet ministers, and intelligence directors across twenty-two countries. One encrypted RFID pulse and ninety minutes is all it takes.

Sloane Voss has seventy-two hours. No infrastructure. No authorized cover. No backup. What she has: her partner Ezra Calloway, whose counter-frequency device may or may not work inside a quantum-jammed airspace; her half-sister Aria Voss-Okafor, whose seventeen identities are the team's only remaining cover; and King Daley, who has been quietly dismantling LUXE's financial architecture one Swiss bank account at a time.

The final confrontation happens not in a tactical operations room, but on the floor of a sealed Vienna opera house, surrounded by two hundred and sixty guests who have no idea what is hidden in the bags they are holding. Pulling a weapon means the mission is already over. The only way to win is to be invisible, precise, and three steps ahead of an organization that has outmaneuvered every intelligence agency in the world for forty years.

Four hundred and eleven bags. Not one missing. The seam holds.

The explosive finale of The Couture Code trilogy