This is a passage from C.S. Lewis’ book Perelandra. The hero Ransom is battling a demon possessed scientist. In my opinion it’s probably one of the best pieces of combat written. Here’s a selection.

The joy came from finding at last what hatred was made for. As a boy with an axe rejoices on finding a tree, or a boy with a box of colored chalks rejoices on finding a pile of perfectly white paper, so he rejoiced in the perfect congruity between his emotion and its object. Bleeding and trembling with weariness as he was, he felt that nothing was beyond his power, and when he flung himself upon the living Death, the eternal Surd in the universal mathematic, he was astonished, and yet (on a deeper level) not astonished at all, at his own strength. His arms seemed to move quicker than his thought. His hands taught him terrible things. He felt its ribs break, he heard its jaw-bone crack. The whole creature seemed to be cracking and splitting under his blows. His own pains, where it tore him, somehow failed to matter. He felt that he could so fight, so hate with a perfect hatred, for a whole year.