Bridge by Lauren Beukes

In infinite parallel universes, there’s a version of you who already has everything you’ve ever wanted. But 24 year old drop-out Bridge is paralysed, by all the other lives she could have lived, the choices she could have made, and now, whoever she’s supposed to be in the wake of her mother’s premature death. They’ve always had a complicated relationship. Jo was the teenage runaway turned maverick neuroscientist who threw everything away chasing after an impossibility – a mysterious artefact – the dreamworm – that allows you to switch between realities. And now she’s dead and any chance of reconciliation with her. But is Jo really gone … or only in this universe?