I knew going in that this book featured a first person narrator with dementia, and I expected it to be a frustrating read. What surprised me was that, while frustrating, it wasn’t unpleasant to read, a balance I hadn’t realised was possible. One of the few things Maud, the narrator, can usually remember (with help from the notes she writes to herself) is that Elizabeth, her only friend, has disappeared. Through flashbacks, we also learn about the disappearance, seventy years earlier, of Maud’s sister. It’s sort of a thriller, but best to have someone on hand with a cup of tea and a blanket, because it’s also a proper downer.