Target audience: Children aged 5 and up. Following the success of "Arthur and Anton," it's time for the two unusual friends to embark on a new adventure. In "Arthur and Anton: The Message in a Bottle," rat boy Anton and raven Arthur, along with their friends, set out to find the mysterious sender of a message in a bottle that has drifted in the canal water, instantly sparking the curiosity of the little gang. To track down the enigmatic writer, they ask Leopold, the waiter from the canal bistro, and Willibald, the carp from the Goldbach. The latter provides the crucial clue about the letter writer, and the quick-witted group sets off on their journey. The exciting second volume, "Arthur and Anton: The Message in a Bottle," has also been written and illustrated by author and illustrator Sibylle Hammer for children aged five and up. The book is available in a bilingual edition in German and Turkish. Especially children growing up multilingual can use the book to enhance and solidify their German language skills. Thanks to the bilingual format, their mother tongue is not neglected. This way, language sensitivity is developed in both languages, and vocabulary is expanded almost effortlessly. The book also includes a multilingual audio CD, where the adventure of the two friends is faithfully narrated by native speakers. It is also available in German/English, German/French, German/Greek, German/Italian, German/Russian, and German/Spanish language versions.