Antarctica, the dead of winter. The moment the last plane lifts off, research station Nyx is sealed from the world for eight months: no flights, no evacuation, no police. Eighteen people, the polar night?and soon one body too many.
FBI profiler Nadia Ellsworth came for a few days, just to close the file on a scientist who fell into a crevasse. A storm slams the window shut early. When a second body turns up, she realizes she's no longer the investigator flown in from outside: she's locked in with the killer, no weapon, no backup, no way out before spring.
One by one, the scientists die in accidents that are a little too perfect. Nadia hunts a serial killer?but nothing fits. And as the cold gnaws at the mind and the dark swallows the days, a colder truth surfaces beneath the ice: even if she names the murderer, no law here can touch him.
A relentless locked-room thriller, where the night lasts a hundred days and knowing is not enough.
