Dessen, Sarah, That summer / Sarah Dessen. - 198 pages ; 22 cm. During the summer of her divorced father's remarriage and her sister's wedding, fifteen-year-old Haven comes into her own by letting go of the myths of the past. 1020 Lexile. ISBN: 0142401722 0670061107 9780670061105 Subjects--Topical Terms: Sisters--Juvenile fiction. Weddings--Juvenile fiction. Interpersonal relations--Juvenile fiction.