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Their humorous to surreal song lyrics mostly deal either with 10th-century Viking Rollo (in an interpretation obviously strongly reminiscent of Dik Browne's Hägar the Horrible rather than the actual historical person) situated in Hedeby instead of Skandinavia in their songs, or life in the modern-day fictional Schleswig-Holstein rural village of Torfmoorholm (lit. "Peatbogville").
The cartoons of the novel are primarily comic strip characters, as opposed to animated cartoon stars, with famous strip characters making cameos, such as Dick Tracy, Snoopy, Dagwood and Blondie Bumstead, Beetle Bailey, and Hägar the Horrible.