Sinners Duet (Natasha Knight) Books in Order

The Sinners duet returns to the IVI secret society world and asks what happens when someone tries to blackmail the wrong man. By Sin to Atone and By Blood to Avenge follow Blue and Ezekiel St. James as a reckless scheme turns into a deadly, all consuming bond.

In By Sin to Atone, Blue thinks she has finally found a way to get leverage on the people who destroyed her life. Her plan is simple on paper: blackmail Ezekiel, a powerful, morally gray member of The Society. She underestimates him badly. The moment his steel gray eyes land on her, the game is over. Instead of paying, he has her kidnapped, folding her neatly into his world where he sets the terms.

Blue is not easy prey. She is carrying her own secrets and protecting her sister, which means submission comes hard. Ezekiel offers protection, but the price is total obedience and a place in his bed. The first book spends a lot of time inside the push and pull between them, as Blue slowly realizes that this man who terrifies her may also be the only one capable of keeping her alive.

By Blood to Avenge raises the external stakes. Blue’s enemies are closing in, and some of the most powerful figures in The Society have decided she is a problem that needs to be erased. Ezekiel, haunted by the ways he failed his sister, refuses to let that happen. His desire to atone for the past fuels a brutal campaign to keep Blue safe, even as he knows that loving her could be the thing that finally destroys him.

The duet is full of forced proximity, secret society politics, and the kind of emotional intensity that comes from two people who see too much of themselves in each other’s damage. You will find familiar IVI touchstones here, but the Sinners books carve out their own path, focused tightly on one couple and the blood soaked choices they make.

If you have enjoyed The Society Trilogy or The Rite and want a fresh entry point into that universe, this duet is a strong candidate. It carries the same dark glamour with an even more personal lens on guilt, sacrifice, and the thin line between punishment and protection.