When 7-year-old Harmony Montgomery was finally reported missing in December 2021, investigators made a horrifying discovery: nobody had seen her in nearly two years. There were no school records, doctor's appointments or welfare checks. No confirmed sightings.

A little girl had seemingly vanished from the face of the earth while the very systems designed to protect her failed to notice she was gone.

In this episode of Serial Napper, we take a deep dive into the heartbreaking case of Harmony Montgomery. From her difficult childhood and the controversial custody decision that placed her with her father, Adam Montgomery, to the warning signs that were repeatedly ignored, we'll examine how a vulnerable little girl slipped through the cracks.

We'll also explore the shocking revelations that transformed Harmony's case from a missing child investigation into a homicide prosecution, including the testimony of Adam's estranged wife, Kayla Montgomery, the years-long search for Harmony's remains, and the 2024 murder trial that resulted in Adam's conviction.

But the story doesn't end there.

In 2025, Harmony's mother secured a multimillion-dollar settlement against the State of New Hampshire over allegations that child welfare agencies failed to protect her daughter. Then, in June 2026, the New Hampshire Supreme Court overturned Adam Montgomery's murder conviction, setting the stage for a possible retrial.

More than six years after Harmony disappeared, one heartbreaking fact remains unchanged: Harmony has never been found.

Sources:

https://www.boston25news.com/news/local/investigators-released-updated-timeline-when-harmony-montgomery-disappeared/3GJZCZVRIZE5ZLJ7BO5ITOBRTI/

https://www.crimeonline.com/2022/01/14/spiteful-dad-of-missing-harmony-montgomery-has-history-of-violently-attacking-women-children-reports/

https://www.fox35orlando.com/news/harmony-montgomery-timeline-everything-known-about-girls-disappearance

https://www.boston.com/news/local-news/2022/01/07/timeline-harmony-montgomery-missing-case/

https://www.bostonglobe.com/2022/01/10/metro/heres-what-know-about-harmony-montgomery-investigation/

https://www.boston25news.com/news/local/timeline-missing-nh-girl-harmony-montgomery/MZQL2N2AMNERNMTLHKQOYRUILA/

https://manchesterinklink.com/when-worlds-collide-d-c-couple-who-adopted-harmony-montgomerys-sibling-choose-to-walk-in-the-light-on-this-dark-road/

https://www.the-sun.com/news/4394373/harmony-montgomery-brother-jamison/#:~:text=Harmony%20Montgomery%20used%20to%20take,biological%20father%20in%20February%202019.&text=Jamison%20was%20taken%20in%20by,Jonathon%20Miller%20in%20November%202019

https://www.rollingstone.com/culture/culture-news/harmony-montgomery-missing-child-case-blame-1284963/ .

https://apnews.com/article/harmony-montgomery-new-hampshire-missing-607b8988b51e7f955627acfacdc98870

https://apnews.com/article/harmony-montgomery-mother-lawsuit-425fd680d5eedffe9e4ed8b1e266cca8 

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