"I lent him to Dumbledore to guard the ... Now, don't ask me anymore ...That's top secret, that is."
-- Hagrid (PS11)
The three-headed dog that guarded the Philosopher’s Stone was bought by Hagrid from a Greek “chappie” in the pub in Hogsmeade.
Hagrid buys Fluffy
Date circa 1990
Location in Canon PS11: Quidditch
Type of Event Wizarding world