Books: after Harry’s first flying lesson, McGonagall fetches Oliver Wood from a classroom and talks to them both in an empty classroom (PS, ch. 9). Series: Harry has a conversation with McGonagall in her office.
Season 1, episode 4
Episode 4 of season 1, Philosopher’s Stone. HBO has not announced its air date yet.
| Season | Season 1 |
| Episode | 4 of 8 |
| Title | Not yet announced |
| Air date | Not yet announced |
| Likely to cover | chapters 8–9 of the book (our estimate) |
What it is likely to cover
This is our own estimate, not information from HBO. It splits the book’s 17 chapters across the eight episodes by story and length. The series may cover more, less, or reorder events.
- Chapter 8: The Potions Master
- Chapter 9: The Midnight Duel
In the book
- The first lessons, Snape’s Potions class and tea at Hagrid’s hut (ch. 8).
- The first flying lesson, Harry becomes Gryffindor’s Seeker, and the midnight duel that leads Harry, Ron, Hermione and Neville to the three-headed dog (ch. 9).
“What would I get if I added powdered root of asphodel to an infusion of wormwood?”— Snape, PS, ch. 8
What we have already seen
Differences from these chapters already seen in the trailers and official images:
Images © HBO. More in official images.
When the episode airs, this page will be updated with the chapters it actually adapts and every difference from the book.





