
Rating: Not rated 
Tags: Science Fiction, BSFA Award, Lang:en 
Summary
 Selena and Julie are sisters. As children they were
      closest companions, but as they grow towards maturity, a rift
      develops between them. There are greater rifts, however. Julie goes missing at the age of seventeen. It will be
      twenty years before Selena sees her again. When Julie
      reappears, she tells Selena an incredible story about how she
      has spent time on another planet. Selena has an impossible
      choice to make: does she dismiss her sister as a damaged
      person, the victim of delusions, or believe her, and risk her
      own sanity in the process? Is Julie really who she says she
      is, and if she isn't, what does she have to gain by claiming
      her sister's identity? The Rift is a novel about the illusion we call reality,
      the memories shared between people and the places where those
      memories diverge, a story about what might happen when the
      assumptions we make about the world and our place in it are
      called into question. 2017 BSFA Award