Some history is worth killing for. Some is worth rewriting.
Dr Sarah Walmsley has spent her career authenticating the past - until an excavation at Tonbridge Castle uncovers a hidden chamber, a pendant that should not exist, and the truth about her father's death. James Walmsley was not the victim of an accident. He was murdered for what he knew: that history can be entered, altered, and owned.
Drawn into her father's secret work alongside her sister Lily, Sarah discovers the Restoration Society - a shadow order embedded in Britain's establishment, rewriting the past to strangle democracy at its birth. Their target: Runnymede, June 1215, and the sealing of Magna Carta.
To stop them, Sarah's team must live inside the thirteenth century - as nobles in King John's court, merchants in London's markets, healers in a monastery riddled with impostors - where a single misplaced word can unmake eight hundred years. But protecting history has a price no one calculated. And the Society has been watching far longer than any of them know.
The first novel in The Divergence Engine series - a race across the centuries where seven artefacts decide who owns time itself, perfect for readers of historical conspiracy thrillers with a speculative edge.