Vicki Regan, Quantum Entanglement (2025)
https://www.goodreads.com/book/show/232441758-quantum-entanglement
We left Sarah Collins in Book 1 sitting on a park bench, having time-travelled to a new timeline, one where her ally Dr Eleanor Hastings, doesn’t recognise her. She doesn’t even know whether this timeline’s Eleanor is one she can trust. Nevertheless, she takes a job with her at her Quantum Temporal Institute. Sarah studies ‘atmospheric anomalies’.
Eleanor doesn’t know whether to trust Sarah, either, but she’s been seeing her in her dreams.
As in Book 1, the action begins right away; by Chapter 2 we’re already swept up, as Sarah is arrested for ‘temporal espionage’, and the two women are on the run again, trying to save the world from shadowy bad guys intent on seizing control of time. They find allies.
Sharp and pacey writing. The style is colourful, yet fresh, avoiding too many clichés. I was impressed by the way Regan weaves the backstory of Book 1 into the new plot. The ticking timebomb is great. Eleanor says, ‘we have three weeks to ensure they never find me—or better yet, to dismantle their entire operation.’ It’s bigger than that, Sarah realises. They just might ‘lose more than our lives’; they might ‘lose all possible futures’.
It’s not a victory—we need to read Book 3—but we know that the quantum entanglement of love is eternal, across all realities.
I thought the explanation of the ‘science bits’ was great. It didn’t even matter if such technology is not really possible, Regan makes it all sound so plausible. Phrases occur and recur—‘chronological inconsistencies’, ‘temporal dissonance’, ‘quantum dampening’—which we don’t quite understand the meaning of, but that’s OK. It sounds cool.
I loved the concept of ‘Aberration Type-3s’, retained memories from erased timelines, ‘timeline bleed’, and ‘chronological stress points’. I loved ‘triangulating your chronological signature’. Loved the mathematical equation of Sarah’s and Eleanor’s relationship.









