Welling, Biegga and the Sisters of the Marsh

Biegga the husky is told the story of the sisters of the marsh, Cloudberry and Bilberry. One of the sisters disappeared mysteriously a long time ago, and after that, a large reindeer has been seen by the forbidden border of the marsh. Is that strange creature somehow connected to Cloudberry and Bilberry? While pondering this mystery, a young reindeer quite literally bumps into Biegga. This is Rambler, and he is looking for his own lost brother. Together, the husky and the timid reindeer go on...