A Wrinkle in Time is the story of Meg Murry, a high-school-aged girl who goes on an adventure through time and space with her brother Charles Wallace and her friend Calvin O'Keefe to rescue her father from the evil forces that hold him prisoner on another planet. At the beginning of the book, Meg is troubled by self-doubt and her concern for her father, who has been missing for over a year. The plot begins with the arrival of Mrs. Whatsit at the Murry house on a dark and stormy night. Although she looks like an tramp, she is actually a celestial creature with the ability to read Meg's thoughts. She startles Meg's mother by reassuring her of the existence of a tesseract--a sort of "wrinkle" in space and time. It is through this wrinkle that Meg and her companions will travel through the fifth dimension in search of Mr. Murry.
Full of complex new vocabulary and relatable story lines, Wrinkle is a great book for 4th-6th graders. This is a great book to read aloud as a class or use in a literature circle. Activities and chapter studies are widely available online.