Harry Potter challenges Death

Inspired by chapter 45 of Less Wrong's incredible fanfic Harry Potter and the Methods of Rationality, but is not a literal depiction of a scene from the fanfic.

On the left, Death of the Endless: ancient, powerful, shrouded in mystery and mystique. Drawn as from Neil Gaiman's Sandman series, because she's more fun to draw than a skeleton with a scythe.

On the right, eleven-year-old Harry Potter. By applying rational scientific techniques to the study of magic, he intends to bring about the end of Death and forge a brighter future for humanity.
The castle is Hogwarts; the equation is Bayes' Theorem; the thing with arrows and squiggles is a Feynman diagram, chosen to represent Harry's knowledge of Muggle scientific findings because it's easy to draw. I don't actually know quantum physics yet, so I hope this one represents something vaguely reasonable.
Harry is rumored to be able to do anything he wants by snapping his fingers.