At least some content in this article is derived from information featured in Harry Potter: Puzzles & Spells. Spoilers will be present within the article.
Prefects Who Gained Power is small book containing a study about prefects at Hogwarts School of Witchcraft and Wizardry and the career paths they followed after leaving school. This work is ubiquitously described as being "deeply boring".
One edition of the study was published sometime prior to August 1992; Percy Weasley read a copy of this while visiting a junk shop in that year, for which his brother Ron and their friend Harry Potter mocked him.
Following Percy's success in the Ministry of Magic, ending up as the Head of the Department of Magical Transportation, the author of this study inducted him into the list of prefects covered, and offered a short biography of him.
Notes and references
- Harry Potter and the Chamber of Secrets, Chapter 4 (At Flourish and Blotts)
- "Happy Birthday Percy Weasley!" via Wayback Machine