Arthur Weasley's letter to Harry Potter

These two letters were written by Arthur Weasley and Sirius Black to Harry Potter on August 2 1995, after the two learned Harry Potter had been attacked by Dementors, and of Mafalda's first letter, and Mafalda's second letter, respectively.

Arthur Weasley's letter
Harry —

Dumbledore's just arrived at the Ministry and he's trying to sort it all out. DO NOT LEAVE YOUR AUNT AND UNCLE'S HOUSE. DO NOT DO ANY MORE MAGIC. DO NOT SURRENDER YOUR WAND.

Arthur Weasley

Sirius Black's letter
Arthur's just told us what's happened. Don't leave the house again, whatever you do.

Apperences
Harry Potter and the Order of the Phoenix