In the book, the malleability of the memory is mostly for Tara. She remembers events from the past that she is convinced happened, but the people around her deny it. For instance, when Luke burned his leg, and notably the fact that she has memories of past abuse. Despite this, her family often tells her that she is confused or deficient, which instils in her a sense of self-doubt and insecurity. It must be hard for her to think that such serious events happened, but she doesn't have the evidence or the support of her family to be 100% sure that these events happened. It must be difficult to…