The Olchis are a popular children's book series by Max Kruse published by Coppenrath Verlag. The stories are about a group of monster children named Olchis, who live in an underground monster kingdom and always get into strange and adventurous situations. The Olchis are known for their humorous and instructive stories and have developed into one of the most successful children's book series in Germany. There are also several animated series, audio books and other merchandise based on the Olchis series.
