Words are important to Gretel. As a child, she lived on a canal boat with her mother, and together they invented a language that was just their own. She hasn't seen her mother since the age of sixteen, though - almost a lifetime ago - and those memories have faded. Now Gretel works as a lexicographer, updating dictionary entries, which suits her solitary nature. A phone call from the hospital interrupts Gretel's isolation and throws up questions from long ago. Longlisted for the Man Booker Prize 2018.