The Four Books in Order

The Four is one of Sloane Kennedy’s darkest series, spinning out of the wider Protectors universe. It follows a tight group of men who were once children trapped in the same nightmare and who, as adults, have turned themselves into hunters of the monsters who deal in human lives.

The series starts with Forgotten: Luca, where Luca, now a successful businessman and sometime fixer, is haunted by the boy he could not save when he was a teenager in captivity himself. That boy, known then only as Billy, is Remy now, a recovering addict working hard to build a quiet life after years of being treated as property. When their paths cross again, Remy wants nothing to do with the man who walked away from him in that locked room, and Luca has to decide whether he is willing to risk everything to make amends.

Foreseen: Lex shifts focus to a different member of the group. Lex has known for years that he is losing his sight, and he has built a life around control and high powered work to avoid facing what comes next. He retreats to a remote cabin in the Maine woods to figure out a plan and ends up colliding with Gideon, the caretaker who assumes Lex is just another rich city guy playing at solitude. The book is as much about disability, pride, and vulnerability as it is about external danger.

In Forgiven: Con, a champion fighter who goes by Zeus in the ring has to confront the worst moment of his past, when he left a broken opponent on the mat and ignored the eight year old brother begging for help. Years later, that boy, Micah, is barely hanging on while raising his niece and nephew in a toxic environment. Con’s attempt to offer restitution and protection is not welcome at first, and their relationship has to grow alongside the question of what forgiveness can realistically look like.

The fourth novel, Forbidden: King, centers on King, a gruff rescuer whose job is to extract kidnapped children. He walked away from Gio, the adult son of a close friend and one of the boys he once helped save, because his attraction felt unthinkable. When Gio begins recovering memories of his own childhood captivity, King is pulled back into his life and forced to balance his role as protector with the messy reality of what they both want.

All four main books deal directly with past abuse, trafficking, addiction, and self harm, and they wear their trigger warnings openly. At the same time, they are stories about survival and what it means to build a chosen family with people who understand the worst parts of you and do not flinch. The Four act as a bridge between the more action heavy Protectors novels and Kennedy’s small town series, blending covert missions with quiet domestic scenes in kitchens, cabins, and safe houses.

Readers who already know the Protectors will recognize cameos and overlapping plot threads here. New readers can also start with Forgotten: Luca if they are comfortable with the darker subject matter and want a self contained arc about guilt, redemption, and the possibility of love after unimaginable harm.