Question: Fantastic Beasts and Where to Find Them is written about a topic in the Harry Potter universe, where is this topic derived from?
Sentence (from "Fantastic Beasts and Where to Find Them"): It includes several notes inside it supposedly handwritten by Harry, Ron Weasley, and Hermione Granger, detailing their own experiences with some of the beasts described, and including in-jokes relating to the original series.
Relevant evidence: No