The Missing Link (Riley Sullivan Mystery)

A convicted kidnapper days from freedom. Three girls missing from thirty years ago. Two new victims who prove the nightmare isn't over.

Private Investigator Riley Sullivan thought she was working a cold case—until history repeats itself. When two girls vanish from the same neighborhood where children disappeared three decades ago, Riley and her partner Cooper realize they’re racing against a killer who’s been hiding in plain sight.

As Riley digs deeper into the original case, disturbing connections emerge between the old victims and the new ones. With each witness interviewed and new evidence discovered, a chilling truth emerges: an innocent man has spent thirty years in prison while the real predator remained free to strike again.

Now Riley faces her most harrowing investigation yet. Time is running out for the missing girls, and everyone she encounters seems to harbor complicated secrets. The deeper she goes, the more she realizes that decades of lies and hidden truths have protected a monster who will stop at nothing to keep the truth buried. Can Riley uncover the real killer before he claims more victims?

In this pulse-pounding mystery, no one is who they seem, and the deadliest secrets are the ones closest to home. Read Book #12 The Missing Link – the final book in the PI Riley Sullivan Mystery series.

Stacy M. Jones is a criminologist turned crime novelist whose thrillers pulse with a realism that only decades working with law enforcement can bring. That firsthand experience fuels her fiction, stories rooted in authentic criminal psychology, human complexity, and high-stakes emotion. 

Since 2018, Stacy has written four series, ranging from gritty FBI thrillers and hard-boiled private eye mysteries to her lighter paranormal cozy series. Her series include the completed cozy paranormal Harper & Hattie Magical Mystery Series, the completed hard-boiled PI Riley Sullivan Mystery Series, the FBI Agent Kate Walsh Thriller Series and the new Connor Fitzgerald Thriller series. 

Stacy holds master's degrees in forensic psychology and journalism and for now calls Little Rock, Arkansas home,though her storytelling always carries a trace of her upstate New York roots.