If it had been anyone other than Potter who suggested there might be a side to your story that needed listening to, I am not sure I would have believed it. However, things are what they are. Mister Potter insists it was you who rescued him from his recent captors. Though I know asking for the truth in this forum is particularly useless, you will notice the charms that have been set on the parchment sent for you to respond. As they were Albus' papers, I assume you might be familiar with them. I would like to hear your side.
Minerva McGonagall, Hogwarts' Headmistress
Along with the owl is a set of parchment from Dumbledore's effects, charmed so that lies written on their pages will disappear.