Spring break is supposed to be a reprieve. Sun, sand, a smoothie you didn’t pay for. What We Did to Survive by Megan Lally takes that promise and shatters it — methodically, gleefully, and with a particular kind of dread that makes you want to cancel every vacation you’ve ever planned. It is one of the most propulsive YA thrillers to arrive in 2026, and if watching four teenagers slowly unravel under mortal pressure sounds like your idea of a good time, this book was written for you.
A Resort, A Sailboat, and the World’s Worst Last Day
Hannah has exactly one problem on her spring break in Puerto Vallarta: Jackson Cole. Her best friend Emmy’s older brother is impossible to get over and even harder to ignore. She has carried this crush for ten years. It’s embarrassing. She knows it.
When Emmy falls headfirst into a vacation romance with the charming, wealthy Bennett Mulholland, the dynamic shifts. Ben — all golden skin and easy money — has exactly one setting: impressive. He charters a private sailboat for the group’s last full day, dismissing a closed marina and an incoming storm with a confidence that should be a red flag. It is a red flag. And yet, because Emmy wants this and Jackson agrees to chaperone, Hannah climbs aboard anyway.
What We Did to Survive by Megan Lally opens as a deceptively breezy contemporary romance before it pivots — hard — into survival thriller territory. The transition is effective precisely because Lally earns it. She builds the resort sequences with enough warmth and comedic tension that readers are genuinely invested in the characters before the water turns dark and the consequences become irreversible.
The Crew That Changes Everything
Hannah: The Reluctant Hero Worth Rooting For
Hannah is the kind of protagonist who catalogues worst-case scenarios before she orders a smoothie. She is self-aware, dry, and disarmingly capable — a lifeguard with a nursing school acceptance letter and a decade-long habit of watching the boy she loves from a plausibly safe distance. Her internal voice drives the novel, and Lally writes it with a precision that feels effortlessly real. When the situation deteriorates, Hannah’s medical knowledge grounds the thriller sequences with specificity that prevents the tension from tipping into melodrama.
Jackson, Emmy, and the Complicated Arithmetic of Trust
Jackson Cole is frustrating in all the right ways: a criminal justice student who reads true crime books at the pool and shows up where he’s least expected, making decisions that feel alternately principled and cowardly. Emmy, meanwhile, is one of the more nuanced best friends in recent YA memory — simultaneously exasperating, strategically brilliant, and deeply loyal when it matters most.
Then there’s Ben. What begins as a wealthy-boy archetype grows into something considerably more menacing as the story progresses. Lally builds his threat gradually, letting the reader share Hannah’s unease long before the situation becomes undeniable. When his mask finally slips, the effect is chilling rather than shocking — because it was always already there, if you knew how to read it.
When the Storm Is the Least of Their Problems
Here is where What We Did to Survive by Megan Lally distinguishes itself from standard survival fiction: the ocean is only half the danger. The novel’s most effective horror is relational — it lives in the cabin below deck, not in the waves crashing overhead. Lally understands that fear hits harder when it wears a human face and speaks in complete sentences.
The pacing in the novel’s second half is relentless. Once the storm arrives and the situation deteriorates, chapters tumble forward with the breathless rhythm of someone who has just registered exactly how bad things are and is trying to think three steps ahead. The romance subplot, woven carefully between crisis beats, earns its emotional payoff without overshadowing the thriller at the novel’s core. The backstory between Hannah and Jackson is parcelled out in pieces, and the slow-burn reveal of what actually happened between them gives readers something personal to root for alongside the more urgent matter of survival.
What Works — and Where It Stumbles
Lally’s greatest strengths are pacing and voice. The novel moves fast, Hannah’s narration is sharp and lived-in, and the core ensemble crackles with friction. The setting — open ocean, broken radio, no rescue coming — is a pressure cooker of a premise, and the author never wastes it.
That said, What We Did to Survive by Megan Lally is not without its rough edges:
- Pacing imbalance in the early chapters: The resort section, while genuinely charming, lingers a beat longer than necessary. Some readers may find the first third leisurely in a way that doesn’t quite match the urgency of what follows.
- Ben as antagonist: His escalation is gripping, but there are moments where his behaviour veers into near-cartoonish territory, straining the realism the rest of the novel works hard to maintain.
- The resolution: The final chapters and epilogue arrive at a rush. The aftermath — emotional, legal, and relational — feels compressed compared to the expansive dread that precedes it.
These are not dealbreakers. They are the kind of rougher edges that appear when a propulsive story is doing its primary job: keeping readers turning pages at an unreasonable hour.
If You Loved This, Read These Next
What We Did to Survive by Megan Lally sits comfortably alongside a strong shelf of character-driven YA thrillers. Readers looking for more should consider:
- That’s Not My Name and No Place Left to Hide — Lally’s previous novels, showcasing the same sharp voice and mounting dread that make her one of YA thriller’s most reliable names
- One of Us Is Lying by Karen M. McManus — group dynamics and secrets under pressure, with a similarly propulsive structure
- We Were Liars by E. Lockhart — isolation, summer beauty, and ugly truths buried beneath the surface
- A Good Girl’s Guide to Murder by Holly Jackson — a protagonist who won’t stop digging, even when she should
- The Inheritance Games by Jennifer Lynn Barnes — tightly plotted, romantically charged, and propulsive from the first chapter
Final Verdict
What We Did to Survive by Megan Lally delivers exactly what its premise promises: a thriller that does not let go. Lally writes fear and friendship with equal fluency, and her cast of imperfect, believable teenagers makes the danger feel personal in a way that purely plot-driven thrillers rarely achieve. This isn’t a flawless novel — it has pacing quirks and a villain who occasionally overdoes it — but in terms of raw page-turning energy, it earns its place on any YA thriller reader’s shelf without question.
The real tension What We Did to Survive by Megan Lally sustains is not simply whether they’ll make it off the boat. It’s what they’ll be willing to do — and to each other — when survival is the only thing left on the table.
