This may be pushing the limits of Harry’s control over his Patronus, but humans can speak in funny voices even without magic, and doing so to prevent characters from recognizing who they are is a standard trope. This deserves mention, though, so I’ll edit to include one.
This may be pushing the limits of Harry’s control over his Patronus, but humans can speak in funny voices even without magic, and doing so to prevent characters from recognizing who they are is a standard trope. This deserves mention, though, so I’ll edit to include one.