DEMENTORS
Chapters 1 to 8, by Myranya, at these links.
Myranya wrote these 8 episodes were written in 2003 - 2004, before Harry Potter books 6 and 7 were published, so she had to guess what would happen in Harry Potter's 6th and 7th Hogwarts years (including some characters surviving who in the books died), and follow the common fan speculation of the time that in the final battle in his seventh Hogwarts year Harry Potter Avada Kedavra'ed Voldemort.
Dementors, chapter 1. The Killing Curse, by Myranya
Dementors, chapter 2. Azkaban, by Myranya
Dementors, chapter 3. With the Dementors, by Myranya
Dementors, chapter 4. Visitors., by Myranya
Dementors, chapter 5. The Snow Feast, by Myranya
Dementors, chapter 6. The second and third year, by Myranya
Dementors, chapter 7. Free at last, by Myranya
Dementors, chapter 8. Familiar faces, by Myranya
Dementors, chapter 9. The Battle, by Anthony Appleyard, written June 2010