Ole Brumm #6/1981

In "Slitsom utnyttelse," Ole Brumm and his friends—Tigergutt, Nasse Nøff, Tussi, Petter Sprett, Kengu, and Kengubarnet—attempt to harness wind and solar power in a whimsical, eco-minded experiment. When their high-minded efforts falter, they settle on a simpler, more traditional solution that brings the group together—though one among them remains unimpressed.

In "På eventyr i jordens indre," Ole Brumm and his friends Tigergutt, Petter Sprett, Ugla, and Kengubarnet embark on a mysterious journey into the earth’s hidden depths, drawn by the sudden disappearance of one of their own. As they navigate strange caverns and unexpected dangers, the adventure tests their courage and friendship in ways they never expected.