 Jim Knopf und die Wilde 13 is the sequel to Jim Knopf und Lukas der Lokomotivführer is available as a set of 3 books( As Teil1, Teil 2, and Teil 3). It is written in German by author Michael Ende.
In this book, the story continues from the 1st book. Jim and Lukas return from their adventurous journey, and life on Lummerland returns to normal.