Anna & Elsa, tome 4
Erica David, Bill Robinson et The Walt Disney Company2015

« Princess Anna, Queen Elsa, Olaf the snowman, and all the stars from Disney Frozen are back in an all-new magical chapter book series perfect for girls and boys ages 6 to 9. Anna has an adventurous spirit. Elsa has magical power over ice and snow. Together the sisters explore the mountains, palace, fjords, and beyond as they finally get to know each other as sisters--and friends. » (Source : goodreads.com)

Titre original : Anna & Elsa, book 4: The Great Ice Engine (2015)