I couldn't put this one down! Jack and his Ma live in Room, a converted garden shed where his mother has been imprisoned for 7 years. Jack was born in Room and has no idea the outside world exists. Because it's told through a 5-year-old's eyes, the sexual abuse suffered by his Ma is only implied (but still plenty chilling). The book is much more focused on the bond between Ma and Jack, her commitment to providing a secure, nurturing, and creative environment for him, and how they are tested when rescue comes and the Jack's entire world explodes.