Classics, modern fiction, nonfiction, and more. Written for high school students and adult learners, the Oxford Bookworms Library offers seven reading levels, from A1 to C1, according to the CEFR. Allegra is an unusual name. In Italian, it means "joyful," but the little girl in this story is sometimes very sad. She is only five years old, but she tells Adrian, her new friend, that she is going to die soon. How does she know? And who is the other Allegra? The girl in a long white nightgown, with golden hair and big blue eyes. The girl who only appears at night, and whose hands and face are cold, so cold... CEFR A2/B1.