Everyone in town thinks Meg Murry is volatile and dull-witted, and that her younger brother, Charles Wallace, is dumb. People are also saying that their physicist father has run off and left their brilliant scientist mother. Spurred on by these rumors and an unearthly stranger, the tesseract-touting Mrs Whatsit, Meg and Charles Wallace and their new friend Calvin O'Keefe embark on a perilous quest through space to find their father. In doing so, they must travel behind the shadow of an evil power that is darkening the cosmos, one planet at a time. This is no superhero tale, nor is it science fiction, although it shares elements of both. The travelers must rely on their individual and collective strengths, delving deep within themselves to find answers.

Madeleine L'Engle is the author of more than forty-five books for all ages, among them the beloved A Wrinkle in Time, awarded the Newbery Medal; A Ring of Endless Light, a Newbery Honor Book; A Swiftly Tilting Planet, winner of the American Book Award; and the Austin family series of which Troubling a Star is the fifth book. L'Engle was named the 1998 recipient of the Margaret A. Edwards award, honoring her lifetime contribution in writing for teens.Ms. L'Engle was born in 1918 in New York City, late in her parents' lives,an only child growing up in an adult world. Her father was a journalist who had been a foreign correspondent, and although he suffered from mustard gas poisoning in World War I, his work still took him abroad a great deal. Her mother was a music