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Trivia
Trivia, title by title: 25 in total. Tap a cover to open it. Titles you haven't marked as read stay locked so nothing gets spoiled.
- Referencenod to comics or other movies
- Cameoa familiar face shows up
- Setupplanted now, pays off later
- Behind the scenesproduction trivia
- Behind the scenesE-book only at first
Shadows came out in February 2012 as an e-book only, a few months after Obsidian. It's a short novella, under 200 pages.
source ↗ - Behind the scenesSpanish readers got it first
Plataforma Neo's paperback in Spain came out in 2015. The first English paperback only arrived in 2016, from Entangled Teen.
source ↗ - ReferenceA bonus in the last book
The 2014 Special Collector's Edition of Opposition included Shadows along with bonus material.
source ↗ - SetupRead it knowing the ending
If you read Shadows after Obsidian, you already know this story doesn't end well. Read it first and you'll understand why Daemon acts the way he does at the start of Obsidian.
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- Behind the scenesAlmost a movie
In July 2013, Sierra Pictures optioned Obsidian for a film. The project never got made.
source ↗ - Behind the scenesNow it's a show
The rights went back to the author. In September 2025, Amazon MGM Studios announced a series covering all five books, run by Smallville's Brian Peterson and Kelly Souders. As of August 2026 it had no cast and no date.
source ↗ - Behind the scenesBrazil got it in 2015
Valentina published the Brazilian edition, Obsidiana, in 2015, translated by Camila Pohlmann. The rest followed through 2018, and two got new titles: Originais and Opostos.
source ↗ - ReferenceStones in the title
Obsidian, a volcanic glass, is the weapon against the Arum in this book. All five novels have O titles, and several stones end up mattering to the plot.
source ↗ - SetupThe missing brother
Daemon and Dee had a third sibling, Dawson, who supposedly died after falling for a human girl. Keep that story in mind.
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- ReferenceThe onyx in the title
If obsidian hurts the Arum, onyx is the Luxen's weak spot. Here it shows up as a weapon in the hands of people who know too much.
source ↗ - ReferenceThe first two in one
In 2014, Entangled put Obsidian and Onyx together in one omnibus, Lux: Beginnings.
source ↗ - SetupThe bet
Daemon bets that Katy will admit she loves him by New Year's Day. It's the book's romantic thread.
source ↗ - SetupWatch the new kid
Blake, the new boy at school, becomes Katy's friend a little too fast. Notice how he always shows up at just the right time.
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- Behind the scenesThe longest one
The US paperback of Opal runs 452 pages, the longest of the five novels.
source ↗ - ReferenceThe opal in the title
After obsidian and onyx, this book's stone is opal, which boosts Luxen powers and helps against onyx.
source ↗ - SetupAn unexpected contact
Blake's contact who knows Mount Weather's security is Luc, and he's a kid. Remember the name.
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- Behind the scenesOpal and Origin together
Origin came out in 2013 from Entangled. In 2014, the publisher bundled Opal and Origin in the omnibus Lux: Consequences.
source ↗ - Behind the scenesThe Brazilian title
In Brazil, Origin became Originais, a plural that ties into what Katy learns in this book.
source ↗ - SetupLuc's price
Luc helps with the escape, but he wants a sample of the LH-11 vaccine in return. He doesn't say why.
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- Behind the scenesCollector's edition first
In 2014, Opposition came out in a Special Collector's Edition bundled with Shadows. The standalone paperback didn't arrive until 2016.
source ↗ - Behind the scenesTwo narrators to the end
The final book has 25 chapters plus an epilogue, alternating between Katy and Daemon.
source ↗ - ReferenceThe universe goes on
After the series, Armentrout returned to this world with the Origin trilogy, starting with The Darkest Star in 2018 from Tor Teen.
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- Behind the scenesPrint vs. e-book
The print edition of Oblivion retells only Obsidian. The e-book goes further and adds Onyx and Opal from Daemon's side.
source ↗ - Behind the scenesA year after the finale
Oblivion came out on December 1, 2015, a year after Opposition wrapped up the series.
source ↗ - ReferenceBook 1.5
Fans number Oblivion as Lux #1.5: a companion novel, not a sequel. It works best after you've read Obsidian.
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