to the worthy. We have been wondering what Snape’s Patronus is. When it appears, at the book’s midpoint, it is the light that Harry has needed. Voldemort cannot touch this. It provides the guidance that Dumbledore doesn’t. There is comfort in this light, which takes the image of Lily Potter, the mate to James Potter’s silver stag. Snape and Harry have been strengthened by love from the same person. The silver doe tells us: follow the mother’s story.
