Heart of Glass

There is a specific kind of quiet that settles over a shuttered amusement park: the rides frozen mid-swoop, the ticket booths gone gray, the whole place holding a breath it took decades ago. Jennifer Hillier walks straight into that quiet and flips the lights back on. Then the water starts giving things back.

What it's about

The premise is elegantly nasty. A notorious amusement park reopens years after a girl vanished somewhere between its gates, the case never closed so much as abandoned. The town wants the grand reopening to be a fresh start, all cotton candy nostalgia and second chances. Instead, new bodies begin washing ashore and the old disappearance stops being history. Hillier keeps the focus tight on the people who never left this behind: the ones who were there when the friend went missing, the ones who spent their whole lives half-believing the park took her. The reopening is not a backdrop. It is the crime scene refusing to stay closed.

Why everyone's talking about it

Hillier has quietly become one of the more reliable names in the genre. "Jar of Hearts" earned her the reputation for thrillers that go darker and more human than the marketing lets on and "Things We Do in the Dark" kept the streak alive. The buzz around "Heart of Glass" leans on that track record plus a setting that does a lot of atmospheric heavy lifting. Abandoned funfairs are catnip for readers who love their dread photogenic.

This one hits hardest for people who read thrillers for mood as much as mechanics: the summer-camp-gone-wrong crowd, the "Yellowjackets" watchers, anyone who likes a mystery rooted in an old friendship that curdled. If you want a lean, forensic procedural with a clean chain of clues, this may run warmer and more emotional than your taste. Hillier tends to care more about why people protect each other than about who left which fingerprint, so cozy-adjacent puzzle fans and hard-boiled minimalists might both find it a touch lush.

The verdict, for now

If your beach bag has room for exactly one thriller with a body count and a grudge, this is a strong candidate to pack. The setup does the thing every good summer thriller should: promises fun, delivers unease, then makes you side-eye the Ferris wheel. Wait for a paperback if amusement parks already give you the creeps, because Hillier is unlikely to make them feel any safer.