When Tartelin answers an ad for a personal assistant, she doesn't know what to expect from her new employer, Marianne, an eccentric elderly woman. Marianne lives on a remote island that her family has owned for generations, and for decades her only companions have been butterflies and tightly held memories of her family. But there are some memories Marianne would rather forget, such as when the island was commandeered by the British government during WWII. Now, if Marianne can trust Tartelin with her family's story, she might finally be able to face the long-buried secrets of her past that have kept her isolated for far too long.