|Minerva McGonagall's letter to Augusta Longbottom|
|Date of writing|
This letter was written by Minerva McGonagall to Augusta Longbottom in around September, 1996. Her purpose was to tell Augusta that Charms was not worthless, as Augusta claimed it was because she failed her Charms Ordinary Wizarding Levels and therefore recommended her grandson Neville Longbottom to take Transfiguration.
- Harry Potter and the Half-Blood Prince (Mentioned only)