Harry Potter's letter to Sirius Black, Ronald Weasley and Hermione Granger

These letters were written by Harry Potter on August 2, 1995 to Sirius Black, Ron Weasley, and Hermione Granger, following his attack by dementors. HE wrote the some thing on each leter and ordered his owl Hedwig, to peck them "until they've written decent-length answers" if she had to.

Content
I've just been attacked by Dementors and I might be expelled from Hogwarts. I want to know what's going on and when I'm going to get out of here.

Apperences
Harry Potter and the Order of the Phoenix