Sierra Knight FBI Suspense Thriller Books in Order

Promising college students are disappearing, and FBI agent Sierra Knight turns to her murdered mother’s files for help. An overlooked detail points toward a hidden location, offering a possible route to the missing students and their captor.

Apparent suicides among parents whose children have left home draw FBI agent Sierra Knight into a troubling investigation. Her mother’s unsent letters suggest connections between the deaths and a fear of being forgotten that someone may be exploiting.

New FBI agent Sierra Knight studies her murdered mother’s case files while investigating successful women found dead facing away from mirrors. The unusual staging may reveal the killer’s motive and expose secrets her mother left behind.

Brides are dying shortly before their weddings, with music for a father-daughter dance playing nearby. FBI agent Sierra Knight uses her mother’s notes to investigate how grief and buried trauma might explain the killer’s choice of victims.

Single mothers are being killed on dates associated with celebrating motherhood. FBI agent Sierra Knight studies her mother’s notes to understand the murderer, confronting questions about family and career that echo through her own investigation.

Hospital workers are murdered with instruments meant to heal, and a patient’s confession seems to settle the case. FBI agent Sierra Knight suspects the admission conceals another offender and searches for the person exploiting it.

Models and actresses are found murdered in poses resembling famous photographs. FBI agent Sierra Knight consults her mother’s art history notes to decode the scenes, hoping to identify what connects the images before another woman is killed.

Murders of apparently unrelated retirees challenge FBI agent Sierra Knight to uncover a shared history. A pattern involving redemption and an unforgiven wrong emerges, forcing her to determine who else might be marked for punishment.

Businesswomen disappear for weeks before their bodies are discovered without a personal possession. FBI agent Sierra Knight must determine what these missing objects mean to a killer whose crimes appear rooted in loss and revenge.