Professor McGonagall, I confess I am one step ahead of you on the subject of locking Floo Networks. As soon as they had arrived, I had set my mind to doing so. They insisted that their visit was authorised by Minister Scrimgeour himself but I cannot imagine the Minister condoning this type of behaviour. I have sent an owl to him this morning, describing what they have done so far, take care to emphasise Miss Brown's reaction to it all.
Speaking of our student, how is Miss Brown doing? When she was released from testing, she seemed hysterical a bit upset. Adding to that, I am afraid that, in the commotion of taking her to the Hospital Wing, the Unspeakables managed to leave with her Pensieve. In my letter, I have also asked the Minister to return that as theft of personal property is most certainly something we do not agree with at the Ministry.
I am confident that this will all be sorted out soon enough.
Safety Inspector,
Percy I. Weasley