SPFBO XI Review: Flint in the Bones (Norwich Map Runners #1) by Eva St. John

Rating: /10

In a city where history bites back, murder is just the beginning.
Detective Eliza “Bish” Barnaby thought she’d left her home behind—along with its plague outbreaks, random time-shifts, and tendency to accidentally host people from the 1600s during breakfast.

But when a dangerous practitioner escapes custody in London, Bish is forced back to Norwich, a city where ancient maps hide deadly shortcuts, angry nuns have scores to settle, and Puritans throw acid at those they don’t approve of.

Armed with only a gun she can’t fire, a spaniel who thinks he’s a wolf, and a partner who dresses like a rejected Bridgerton extra, Bish must stop a killer before wild magic unravels the city’s fragile balance.

But keeping her own forbidden talents hidden is just as dangerous as catching the murderer. And in a place where past and present bleed together, the only way to solve this mystery might be to embrace the very magic she fears.

I read this book as a judge for FanFiAddict during SPFBO XI. These opinions are entirely my own and don’t necessarily represent the views of the rest of the team.

From the very first chapter, this book had me. There’s a charm to Flint in the Bones that acts as sugar coating over its darker elements, a strange and delightful mixture of whimsy and seriousness that strikes a wonderful balance. Like pairing black coffee with a creamy donut.

Detective Eliza “Bish” Barnaby is the kind of protagonist I immediately fall for. She’s a self-imposed outcast with a pragmatic, borderline cynical view of life that’s laced with just enough sass to make every observation she delivers a small joy. And she’s surrounded by one of the most colorful casts I’ve encountered in a while. Every time a new name appeared on the page, I got genuinely excited to learn what idiosyncrasy this person would delight me with. St. John has a gift for making every character feel distinct and memorable, no matter how brief their appearance.

The worldbuilding is the book’s crown jewel. A modern era where magic is both powerful and volatile, where different time periods bleed into a single location and the cultures of those eras collide in ways that feel thoughtful and well-constructed. Norwich feels alive with possibility and danger in equal measure, and the way St. John handles the mix of past and present is genuinely inventive.

The plot is layered from the start, personal to Bish while simultaneously pulling in the world, the setting, and the supporting cast in ways that feel organic. The pacing does snag a little toward the middle as the investigation slows and Bish spends time running around the city tracking leads, but it never lost me entirely.

St. John’s prose is full of cheeky lines that made me grin, and nearly every paragraph contains some unexpected turn of phrase that still manages to paint an accurate picture. It’s the kind of writing that feels effortless even though you know it isn’t.

Flint in the Bones is a book with a lot of charm, a fascinating world, and a protagonist worth following anywhere. If you’re looking for something that blends mystery, magic, and subtle wit in a setting you haven’t seen before, this one deserves your attention.