Toffee — Sarah Crossan

When Allison runs away from home she doesn't expect to be taken in by Marla, an elderly woman with dementia, who mistakes her for an old friend called Toffee.
Allison is used to hiding who she really is, and trying to be what other people want her to be. And so, Toffee is who she becomes. But as her bond with Marla grows, Allison begins to ask herself -where is home? What is a family? And most importantly, who am I, really?