Book Review: Obsidio

Title: Obsidio (The Illuminae Files #3)

Author: Amie Kaufman and Jay Kristoff

Genre: Young adult sci-fi

Format: Audiobook

Published: By Listening Library on March 13th, 2018

ISBN13: 9780553499193 (Hardcover edition)

Grade: Outstanding



Kady, Ezra, Hanna, and Nik narrowly escaped with their lives from the attacks on Heimdall station and now find themselves crammed with 2,000 refugees on the container ship, Mao. With the jump station destroyed and their resources scarce, the only option is to return to Kerenza—but who knows what they’ll find seven months after the invasion?

Meanwhile, Kady’s cousin, Asha, survived the initial BeiTech assault and has joined Kerenza’s ragtag underground resistance. When Rhys—an old flame from Asha’s past—reappears on Kerenza, the two find themselves on opposite sides of the conflict. With time running out, a final battle will be waged on land and in space, heros will fall, and hearts will be broken.

This was one of my most anticipated books of this year and I was really looking forward to it especially since the release date was pushed back from 2017 to March 2018. Since I’d rated its predecessors both 5 stars, it’s quite obvious that I had very high expectations from this book. Check out my spoiler-free reviews for Illuminae and Gemina if you’re interested in this series or want a bit of a refresher.

Obsidio did deliver on all fronts and became one of my favourite endings to a trilogy I’ve ever read. I got the audiobook for this just like I did for Illuminae and Gemina, which I think is the best way to consume this series. Not only does it have an amazing full cast of narrators, it also helps make sense of the multi-media format of the book that can be quite difficult for people to get into.

This book introduces two new main characters – Asha Grant and Rhys Lindstrom. While it was quite difficult to give enough space for these characters to get their own arcs because the story switched between what was happening on Kerenza and the surviving group from the previous books that’s headed towards the planet, I still got a feel of their personalities. I also loved seeing some other new characters aboard Hypatia and some of the BeiTech personnel as well as continue rooting for Kady, Ezra, Hanna, Nik and Ella. I think the adults in this book also got their time to shine, especially Chief Grant and Captain Bull. The cast in this trilogy are so superbly done that I can easily name more than ten characters that really stood out to me and this is exactly the kind of series I enjoy. However, my favourite by far is AIDAN, the AI that becomes dangerously more human with each passing book.

The plot deals with the aftermath of the events of Gemina, with the main characters struggling to cope with the losses they suffered and working on their relationships with each other as well as working as a team to survive in space. Not only did it come with the trademark twists and shock factor that has made this series so popular, it also explored how the devastating happenings from the previous instalments affected the entire cast of characters and the conflict it brought out. I think the latter added a layer of complexity to the story that I wasn’t expecting but it served to seamlessly advance the narrative and add to the tension. The world-building was expanded upon too with the look at Kerenza and also the BeiTech side of the story whereas previously they were just seen as the antagonists. Overall, the conclusion to the story was epic and fulfilled all my expectations.


For those of you looking for a fast-paced, original and cleverly constructed YA sci-fi, this is the best series I can recommend. Since I read the audiobook for this, I don’t have any suggestions for the music and if you have the means to, please pick up the audio version of this as it is an absolutely fantastic production! For the food, I’d pair it up with some light snacks or comfort food. If that’s not on hand, a huge tub of regular old popcorn (caramel is my go-to but you can pick any) would do the trick as well.


Book: Goodreads | Audible | Wordery

Authors: Amie’s Website | Jay’s Website | Amie’s Twitter | Jay’s Twitter


Have you read this series? If so, what did you think? Which sci-fi story would you recommend I read after this one?

4 thoughts on “Book Review: Obsidio

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