This set of 12 books from the Geronimo Stilton series is perfect for children aged 9-12 who love action, adventure, fantasy, and mystery. The books are written in English by Elisabetta Maria Dami and illustrate the adventures of Geronimo Stilton, Thea Stilton, and their friends. The set includes classroom chapter books that are illustrated and easy to read, making it a great addition to any child's book collection.

The books are published by Scholastic and are perfect for children who love detective stories, humor, and books. The set is a mixed title set that includes novels, fantasy books, and mystery books, making it a great choice for children who love a variety of genres. This set is perfect for children who love to read and who are looking for books that are both exciting and easy to read.