Book 3
Harry Potter and the Prisoner of Azkaban
The Problem: An arch criminal names Sirius Black has escaped from Azkaban, a high-security jail for wizards, and he's looking for Harry.
Quidditch Update: Harry gets a Firebolt, the sweeping edge of high-performance flying brooms.
Scary Monster: Dementors, spectral prisoner guards that drain the hope and happiness out of everyone around them.
Magical Gadget: The Sneakoscope, a gyroscopic doohickey that spins and glows when untrustworthy people are nearby.
Defence Against the Dark Arts Teacher: Remus Lupin, a sympathetic and skillful wizard with a magic � er. Tragic flaw.
New Spell: The Patronus charm. It creates a silver spirit that dispels dementors.
What Harry Learns: That those we have lost are always with us, in particular when we need them in the most.
Cast