- Why, in the climax, can Carrot thrust his sword clean through first a villain and then a marble pillar without apparent effort? On one hand, narrative... Carrot is an Ideal Hero, so certain special rules apply here. But there's also the sword itself. In Guards, Guards, we learn that the sword is utterly nonmagical. Less magical than the natural background field of the Disc, in fact. Which, by Discworld rules, means it is more real than the rest of the Disc. It therefore gets to abuse the same logical loophole that Death (the Ultimate Reality) does to walk through walls: From its point of view, whatever it cuts is barely there at all.
Fridge / Men at Arms