In a last-minute surprise move, at the end of Deathly Hallows, it turns out that Ron Weasley can open the Chamber of Secrets using Parseltongue. At first read, this seems like an awfully convenient plot point. But is there more to it? I looked into what the series says about Parseltongue acquisition and Ron’s history with it and found answers that are more substantial than I expected. This was a fun one to write for Mugglenet.