Twelve Dark Hours : From the world of international bestseller SEVEN DEADLY THORNS

Author: Amber Hamilton

Fantasy & magical realism (Children's / Teenage)

Published on 27 October 2026 by Bloomsbury Publishing PLC (Bloomsbury YA) in the United Kingdom

Hardback | 384 pages
240 x 162 x 34 | 564g

Three trials. Two rivals. One choice.

Immortal Dark meets Powerless in this dark academia romantasy of star-crossed lovers, from the world of international bestseller Seven Deadly ThornsCompetition for top student at Gossemort school of magic is cutthroat. Vesper Fontaine and Lonan Duval have always been rivals, but they share a dangerous secret. Tonight, that secret could get them killed.

The annual Solstice feast should be a time to celebrate. But destiny has other plans. A mysterious crown prince arrives and claims Vesper as his bloodmate, triggering a chain of events that turn the celebration into a nightmare. All the students will be locked in the school and challenged to survive until dawn. They will face three trials, each more deadly than the last.

Vesper and Lonan fight off threats at every turn, but as the clock ticks closer to dawn, hope wanes. To survive the night, Vesper must make an impossible choice: embrace a familiar danger or surrender to a new fate.

What if love is a fate worse than death?