She has been here before. She does not know this yet.

On Day 41 of her Arctic posting, Dr. Nadia Voss begins documenting a terrifying epidemic: her colleagues are losing hours, then entire nights — windows of time vanishing without trace. Security footage shows empty corridors. The data is undeniable. And Nadia, a scientist who has spent her career mapping the failures of other people's minds, is going to find the cause.

But the evidence keeps pointing somewhere she refuses to look.

A sticky note in her own handwriting. A hidden log from a posting she can't remember. And a voice on the emergency radio: this is the fourth time we've spoken, Dr. Voss. There has never been a team.

She is alone. She has always been alone. Her colleagues exist only inside a mind building walls around something unbearable — something she has been circling for fourteen months without being able to say its name.

The most dangerous unreliable narrator isn't hiding the truth from you. She's hiding it from herself.

Perfect for fans of: Gillian Flynn · Paula Hawkins · Lucy Foley · Susanna Clarke · Tana French

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