Author: Holly Seddon
Publisher: Atria Books
Publication Date: November 17, 2026
Rating: 4 out of 5 stars
I love a book that makes you sit with an uncomfortable "what if," and Holly Seddon's alternate-reality thriller does exactly that. Librarian Maya boards her usual sleeper train from Edinburgh to London, but when lightning strikes the carriage she wakes into a London she doesn't recognize — one where the Berlin Wall never fell, the Cold War never ended, and Britain is an authoritarian Soviet state. Her husband Arthur is missing, a stranger is living in her flat, and because her parents never had their gap-year kiss by the wall, Maya herself was never born into this version of the world. Alone and adrift, she falls in with a resistance movement built largely around librarians like her, and gets sent undercover into the government itself, desperate to find her way home and the people she loves along the way.
It's part Cold War spy thriller, part time-travel science fiction, and the blend mostly works, even if the pacing sags somewhat. What I loved most was the doubling of Arthur — one version in Maya's real timeline, one in this Soviet-London reality — set against a single Maya who has to become someone else entirely just to survive.
That contrast does a lot of quiet work, and it's where the book's emotional core really lives. The lightning-strike-as-portal device asks for a fair bit of suspension of disbelief, but I was willing to grant it for the story it unlocks. I did find myself occasionally frustrated by how long Maya goes without picking up the language or customs of the world she's landed in — it stretched credulity a bit for someone this resourceful.
That contrast does a lot of quiet work, and it's where the book's emotional core really lives. The lightning-strike-as-portal device asks for a fair bit of suspension of disbelief, but I was willing to grant it for the story it unlocks. I did find myself occasionally frustrated by how long Maya goes without picking up the language or customs of the world she's landed in — it stretched credulity a bit for someone this resourceful.
Where the book shines is in its small, telling details of a world with less — parents actually holding their children's hands and talking to them instead of staring at phones, kids clutching dolls and rattles instead of screens, a boy playing spy with real gusto because that's the entertainment he's got. It's a clever way of making the reader question what our own abundance and freedom have cost us. And I loved that libraries end up as the story's literal safe haven — as someone who thinks of libraries as sanctuaries myself, that felt exactly right.
A big thank you to Atria Books and NetGalley for providing an advanced reader copy in exchange for an honest review.
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