Preston, Natasha, The twin / Natasha Preston. - 375 pages; 21 cm After sixteen-year-old Ivy's twin sister, Iris, moves in with her and their father, Ivy learns that Iris is trying to push her out of her own life--and may be responsible for their mother's death. Ages 12 up. Delacorte Press. Grades 7-9. Delacorte Press. HL580L Lexile Decoding demand: 94 (very high) Semantic demand: 100 (very high) Syntactic demand: 84 (very high) Structure demand: 88 (very high) Lexile ISBN: 9780593124963 0593124960 LCCN: 2019037246 Subjects--Topical Terms: Sisters--Fiction.Twins--Fiction.Grief--Fiction.Mental illness--Fiction.High schools--Fiction.Schools--Fiction.