By the author of A Wrinkle in Time, the conclusion to the Polly O'Keefe stories finds Polly taking an unforgettable trip to Europe, all by herself.
Sixteen-year-old Polly is on her way to the island of Cyprus, where she will work as a gofer. The trip was arranged by Maximiliana Horne, a rich, brilliant artist who, with her longtime companion, Dr. Ursula Heschel, recently became the O'Keefe family's neighbor on Benne Seed Island. Max and Polly formed an instant friendship and Max took over Polly's education, giving her the encouragement and confidence that her isolated upbringing had not. Polly adored Max, even idolized her, until Max betrayed her. In Greece, Polly finds romance, danger, and unique friendships. But can she ever forgive Max?
Books by Madeleine L'Engle

A Wrinkle in Time Quintet
A Wrinkle in Time
A Wind in the Door
A Swiftly Tilting Planet
Many Waters
An Acceptable Time
A Wrinkle in Time: The Graphic Novel by Madeleine L'Engle; adapted & illustrated by Hope Larson
Intergalactic P.S. 3 by Madeleine L'Engle; illustrated by Hope Larson: A standalone story set in the world of A Wrinkle in Time.
The Austin Family Chronicles
Meet the Austins (Volume 1)
The Moon by Night (Volume 2)
The Young Unicorns (Volume 3)
A Ring of Endless Light (Volume 4) A Newbery Honor book!
Troubling a Star (Volume 5)
The Polly O'Keefe books
The Arm of the Starfish
Dragons in the Waters
A House Like a Lotus
And Both Were Young
Camilla
The Joys of Love