Following Khan's debut }Hold Back The Stars{, this original love story begins with an experiment Thea conducts as part of her Masters degree going awry, causing her to call on her estranged friend Isaac, who heads home to help, with unexpected consequences

Thea and Isaac first met at University. Theirs was an instant connection but it never went further than friendship.

Because, then and now, Thea only has eyes for her work. Not just her course, but also a private project - Thea is determined to prove that time travel is not just the stuff of science fiction. And she has never told anyone the reason why.

When one of their friends goes missing in an experiment, Isaac and Thea must work together to find her - forcing them to re-examine their own friendship.

Is it really as platonic as they used to think?

The Light Between Us is a story of unrequited love and second chances. It begs the dangerous question that we all ask ourselves - what could have been?