Let me geek out for a second—Philip Pullman's 'His Dark Materials' is technically a trilogy, but the universe has expanded so much! The original three books ('Northern Lights,' 'The Subtle Knife,' and 'The Amber Spyglass') are a complete arc, but then Pullman couldn’t resist revisiting Lyra’s world. He started 'The Book of Dust' series, which acts as both prequels and sequels. It’s like the Marvel Cinematic Universe but for literary fantasy—everything connects in unexpected ways. The trilogy’s themes are already dense (religion, quantum physics, talking polar bears!), but adding newer books like 'La Belle Sauvage' deepens the lore. Personally, I love how Pullman keeps challenging readers with bigger ideas.
That said, the original trilogy stands perfectly on its own. The ending of 'The Amber Spyglass' wrecked me emotionally, and for years, that was the definitive conclusion. Now, with new material, it feels like revisiting an old friend who suddenly has wild new stories to tell. Whether you stick to the trilogy or dive into the expanded works, it’s a ride worth taking.