He thought it was harry's, until harry reminds him that his is a stag. Webapr 24, 2012 · snape placed the sword in the lake then cast the patronus to guide harry to where the sword was. Webjun 5, 2024 · ron denies casting the doe patronus;

This gets revealed later in part 2 of deathly hallows after snape dies and harry is looking into his pensive. Webwe've been slowly learning about the odd and powerful expecto patronum spell since harry was first taught how to cast it in book 3, the prisoner of azkaban. To test the sword's authenticity, they decide to destroy. While at first, a.