Vengeance Books in Order

The Vengeance novels put a teenage girl at the center of an adult‑sized conspiracy. Rylee has grown up on the run, changing names, towns, and hair color whenever her anxious mother decides danger is getting too close. She’s never fully understood who is chasing them, only that normal life—friends, sports, crushes—is always one step out of reach.

That uneasy routine shatters at the start of The Girl on the Run. Rylee and her little brother arrive home from school to find their stepfather dead with a knife in his chest and their mother missing. A single bloody message on the floor—run—sends them across the country, following clues their mother has left behind while trying to dodge both the police and a relentless stalker who has been looking for them for years.

Because she has been faking identities her entire life, Rylee is unusually good at lying, improvising, and slipping into other people’s spaces. She uses those skills to infiltrate small towns and elite circles alike, gathering information about a string of murdered girls and the shadowy figure who ties the cases together. At the same time, every new discovery forces her to question what, if anything, in her past was real.

In The Boy She Left Behind, Rylee’s search takes her to Portland, Oregon, where a serial killer is targeting college students. Working under yet another alias, she slips into campus life to trace the murderer while also dealing with the fallout from a personal betrayal that cuts deeper than any enemy. The more she uncovers, the more she has to decide whether she is hunting justice or simply feeding her own need for revenge.

Unlike Olsen’s police‑procedural series, these books stay firmly inside a teenager’s point of view. They move fast, jump from car chases to hacked laptops to whispered confessions, and don’t offer easy answers about what it means to be a good victim. Rylee lies, steals, and breaks laws, but she also refuses to look away from the damage done to other girls—and that tension gives the series its bite.