None.

People often talk about how the Fredriksten fortress and Fredrikshald were attacked, burned and ruined in historical battles against Sweden. Loss of lives is also talked about.

Several dramatized scenes are little violent, since multiple soldiers are seen killed in war, while multiple other soldier are seen shooting at others.

Several illustrations contain fierce war and dead people. One illustration shows a dead horse.

In a dramatized scene, a man is shown to have been shot in the head. The bullet wound can be seen, but nothing particularly graphic.

None.

None.

Some of the dramatized battle scenes can be little intense for children, but this is all related to the dramatic but historical time when Karl VII of Sweden attacked the Fredriksten fortress.