"Le Trésor au cœur du Bois-Touffu: An English to French Translation" is a French translation of Meridith Ann Peirce's 2001 young adults novel, "Treasure at the Heart of the Tanglewood." A modern interpretation of the Persephone myth, "Treasure" tells the story of Hannah, the mysterious girl with green things growing in her hair, whose coming of age will save th world. This project focuses on the author's style, aiming to produce a translation that is both faithful to Pierce's distinctly stylized English and enjoyable for the French reader. The introduction includes several brief analyses of the book and the translation process.