The Fourth Weapon

Some weapons are built to kill. The Fourth Weapon was built to leave no evidence it was ever used.

Six months after surviving Horus, Brooke "Shotgun" Woods is no longer a recruit. She is a commander responsible for training the next generation of operatives-and for making sure they survive the organization that created them.

Then intelligence surfaces about the Fourth Weapon: a biological attack designed to look like a naturally emerging outbreak. The original research was supposedly destroyed. Now someone is preparing to sell a perfected version to the highest bidder.

Shotgun's investigation leads from private auctions and covert brokers to abandoned facilities and buried Horus files. But every answer exposes another lie, and the trail points toward someone operating from inside the organization itself.

Then Shotgun comes face-to-face with the man she buried without a body.

He is alive. He is working with the enemy. And he may be the only person who can tell her who is really building the weapon.

To stop an attack no government would recognize until it was too late, Shotgun must decide who she can trust-and whether loyalty means protecting Horus or exposing the truth that could destroy it.

The Fourth Weapon is Book Two in the Horus Thriller series, a cinematic espionage thriller filled with covert operations, biological warfare, hidden loyalties, and the devastating cost of choosing the harder right when no one is watching.

Begin the series with Three Good Weapons.