
Sons of Valor
military thriller
Series · thriller
The Frankie Elkin series by Lisa Gardner has 4 known books (4 published) and is best read in publication order, starting with Before She Disappeared (2021).
Start here: Before She Disappeared (2021) — then read straight through in publication order.
The date order of published books and any announced future entries — the default way to read the series.
Before She Disappeared, published January 2021, introduces Frankie Elkin, a recovering alcoholic who funds her search for missing people nobody else is looking for with bartending money, working a Boston neighborhood to find a missing Haitian teenager.
Alternative text for cover: Cover of Before She DisappearedOne Step Too Far followed a year later, in January 2022, matching the opener's 400 pages exactly as Frankie moves to a remote wilderness search-and-rescue town.
Alternative text for cover: Cover of One Step Too FarStill See You Everywhere arrived two years after that, in March 2024, holding at 400 pages for a third consecutive entry while Frankie works a serial-killer cold case.
Alternative text for cover: Cover of Still See You EverywhereKiss Her Goodbye (August 2025) finally breaks the series' run of identical 400-page entries, growing to 408 pages as Frankie Elkin's fourth case, searching for a missing Afghan refugee while her own backstory -- her sobriety, the sister she couldn't save -- keeps filling in around the search.
Alternative text for cover: Cover of Kiss Her GoodbyeFrankie Elkin is a recovering alcoholic who spends her life finding missing people nobody else is looking for — usually people of color, poor, or otherwise overlooked by police and the media — funding her search for one case with bartending money until she's ready to move to the next. Lisa Gardner introduced her in Before She Disappeared, working a Boston neighborhood to find a missing Haitian teenager, and the format has repeated with variations ever since: Frankie arrives in a new town with nothing, ingratiates herself with locals, and works a cold or overlooked case that the authorities have given up on or never properly investigated.
Each book moves Frankie to a new setting and a new kind of case — a remote wilderness search-and-rescue town in One Step Too Far, a serial-killer cold case tangled up with true-crime obsessives in Still See You Everywhere, and a missing Afghan refugee in Kiss Her Goodbye — while steadily filling in Frankie's own backstory: her sobriety, a sister she couldn't save, and the guilt that drives her from case to case. Gardner uses the format to foreground exactly the kind of victim mainstream crime fiction and news coverage tend to skip past, which gives the series a sharper social edge than her earlier procedurals.
It's a good entry point for readers new to Gardner altogether — no series history required, no returning cast beyond Frankie herself, and a fresh premise reset with every book.
Four so far, published between 2021 and 2025, starting with Before She Disappeared.
Publication order is easiest, though each book is a self-contained case in a new setting. Frankie's own backstory builds gradually across the series.
No. Frankie Elkin doesn't cross over with D.D. Warren, Quincy & Rainie, or Tessa Leoni — it's designed as a standalone entry point into Gardner's work.
A fifth novel has been referenced by Gardner's publisher but no confirmed title or release date was available as of August 2026.
Missing-persons cases that police and the media have deprioritized or abandoned, often involving victims from marginalized or overlooked communities.
Reading order last verified .