A Harry Potter and the Prisoner of Azkaban fanfiction swapping Sirius Black's role with that of Remus Lupin.
- See the unabridged version here.
http://tvtropes.org/pmwiki/pmwiki.php/Laconic/AnotherPrisonerAnotherProfessor
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A Harry Potter and the Prisoner of Azkaban fanfiction swapping Sirius Black's role with that of Remus Lupin.