- 12 Grimmauld Place (PotterGrangerous)
- 12¾", Walnut, dragon heartstring
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- A Better Place
- A Black Comedy
- A Black Guardian Angel
- A Broken Soul
- A Change of Plans (short story)
- A Christmas Carol
- A Clandestine Reality
- A Cost Too Much
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- A Family Like None Other
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- A Peccatis
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- A Simple Twist Of Fate
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- A Summer Like None Other
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- A Year Like None Other
- A Year in the Life
- Aaron Blackwell (The Eternal Wayfarer)
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- Aberration
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- AfterMagic
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- Albanian National Quidditch team (Nemolee.exe)
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- Albus Dumbledore: Expiation
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- Albus Dumbledore and the Everlasting Flame
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- Albus Potter
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- Albus Potter and the Foulest Book
- Albus Potter and the Rise of the Dark Alliance
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- Albus Potter and the Year of the Badger
- Aldis (GATS)
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- Alexander Potter (THE)
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- Alexandra Quick series
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- Always
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- Angelina Johnson: Getting Out of Bed
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- Anger
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- Animagus
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- Ankylosaurus (Lord Caesar)
- Anna Grayson and the Order of Merlin
- Anna Winterbourne (HPMU)
- Annabelle's Hogwarts Adventure
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- Another Part of the Castle (1996) (short story)
- Anthony Davis (Pidoria)
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- Antonius Potter (PotterGrangerous)
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- Arabesque
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- Artemis (Artemis Chronicles)
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- Artemis Potter -Two Worlds Colide.
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- Asta Lestrange (Clover Charms)
- Asteria Malfoy (The Eternal Wayfarer)
- Astoria Greengrass
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- Astoria Greengrass (TMotM)
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- Astrophel Lupescu (HPR1)
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- At the Hour
- Athanasia Bulstrode (Fandomtrash56)
- Atlantic Aquawyrm (Lord Caesar)
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- Attorlathe (WR)
- Audrey Galland's Wand (MA)
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- Augustus Ambrosius Pendragon (CaptainFlowerss)
- Augustus Apothecary (CaptainFlowerss)
- Augustus Crane (SB)
- Aurelia Zabini (Phoenix Blade)
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- Auro Formicia (Logo8th)
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