Recaps

Draco built political connections and prepared the Malfoys for a Dementor uprising while growing closer to Hermione. As they boarded the Hogwarts Express, they established a train-wide Patronus barrier and settled into a compartment with Cho Chang and Emock.

• Draco urged Lucius to challenge Fudge, warned that the Dementors were nearing rebellion, and persuaded the Malfoys to prepare for the crisis.
• Draco and Hermione shopped in Diagon Alley with Neville, Hannah, and Luna, and Hermione adopted a ginger cat named Crookshanks.
• Draco styled Hermione’s hair, then taught her the Patronus Charm, revealing that her Patronus was a sea otter and his was a fiery-red lion.
• Draco told Hermione that Dementors could threaten Hogwarts students, and he later explained that he planned to protect the Hogwarts Express.
• Draco and Hermione set up seven moonstone charms that linked into a train-wide Patronus Protective Barrier powered by Draco’s lion Patronus.
• Cho Chang and Emock joined Draco and Hermione’s compartment, where they admired Hermione’s hair and learned that Draco had styled it.
• The Hogwarts Express left King’s Cross as Draco, Hermione, and Cho Chang discussed Hogsmeade and Crookshanks asked Draco for milk toffees from Honeydukes.

Draco and Hermione protected Hogwarts and Hogsmeade from Dementors, while helping Hagrid teach Care of Magical Creatures and learning to cast Patronuses. After Draco established a barrier around the village, armored Trolls attacked, and the students and shopkeepers joined forces to defeat them.

• Dementors boarded the Hogwarts Express, but Draco’s prearranged barrier drove them away, and Dumbledore later asked Draco to protect Hogwarts.
• Draco demonstrated a fiery-red lion Patronus in the Great Hall and agreed to create a barrier around Hogwarts in return for a future favor.
• Draco and Hermione helped Hagrid teach the students to approach and fly Hippogriffs, earning Buckbeak’s trust and helping the class succeed.
• Lupin taught the students to repel Boggarts, and Hermione, Harry, and others defeated their fears with Riddikulus.
• When Dementors threatened students on the way to Hogsmeade, Hermione’s silver otter Patronus drove them back.
• Draco offered to protect Hogsmeade with a barrier, then placed rune stones around the village and opened a route for patrols to keep Dementors away.
• Armored Trolls attacked Hogsmeade, but Draco, Hermione, the students, Aberforth, Madam Rosmerta, and the shopkeepers defeated them and repaired the damage.

Draco helped turn Hogwarts against Fudge, offered Lupin a future, and joined Hermione and Professor Babbling in uncovering the ancient trials and vault tied to Ancient Magic. After Ranrok and Rookwood emerged as threats, Draco and Hermione discovered the Athenaeum, then confronted Ashwinders attacking Hogsmeade patrols.

• Draco's account of the Dementor-driven troll attack and Lucius's open letter against Fudge shifted Hogwarts from fear to anger, while Harry won Gryffindor the Quidditch Cup.
• Draco offered Lupin a secure job, Wolfsbane Potion, and a chance to tutor Hermione, then warned him that Snape was trying to expose him.
• Professor Babbling took Draco and Hermione to ancient Highland ruins, where they found a key that led them through Gringotts to Vault Twelve and its Ancient Magic trials.
• Draco fought waves of stone warriors alone until he reached Rackham's Pensieve, where Ranrok arrived seeking the vault's key and magical legacy.
• Ranrok's attack awakened the vault's giant guardian, and Draco escaped the collapsing chamber with Hermione and Professor Babbling before taking Hermione to Hogsmeade.
• Draco confronted Victor Rookwood and Theophilus Harlow, secured a ten-percent stake in the Three Broomsticks, and spent Christmas with Hermione.
• Draco and Hermione traced Ancient Magic to a portal in Hogwarts, entered the Athenaeum, and learned that its Keepers had preserved Ancient Magic and that its trials' details were missing.
• After Rookwood's Ashwinders attacked a Hogsmeade patrol, Draco healed Tom, stunned two attackers, erased their memories, and ordered his subordinates to take them away for possible recruitment.

Draco and Hermione uncovered the truth behind Jackdaw’s death and Anne’s conviction, then found the Map Chamber and learned about the Keepers’ trials. Their discoveries about Scrope’s treatment by Apollonia led Hermione to question house-elf servitude and decide to establish S.P.E.W.

• Draco and Hermione helped Nora Treadwell activate Merlin’s Trial before learning from Hagrid that poachers were taking creatures from the Forbidden Forest.
• Draco and Hermione agreed to investigate Jackdaw’s death, followed him into the forest, and entered a cavern where goblins attacked them.
• Draco and Hermione crossed the cavern’s magical trials, found Jackdaw’s remains, and reached the Map Chamber, where Percival Rackham revealed the Keepers’ trials and marked their first trial.
• Jackdaw learned how he had died and vanished, after which Scrope told Draco and Hermione that Apollonia had killed Jackdaw and framed Anne.
• Draco and Hermione found letters linking Apollonia to Jackdaw and ancient-magic research, then agreed to send evidence to the Ministry and clear Anne’s name.
• After returning to Hogwarts, Draco and Hermione shared a late-night meal and agreed that Anne alone was innocent of the crimes surrounding Jackdaw’s death.
• Scrope’s story made Hermione reconsider house-elves’ treatment, and she decided to establish S.P.E.W.