At least one of the adaptations as of the 1980's also had moments that were very much dark and scary as a child. I haven't read or seen anything of the Moomins

At least one of the adaptations as of the 1980's also had moments that were very much dark and scary as a child. I haven't read or seen anything of the Moomins since, but I think the Groke might have been one of the things that freaked me out.