Silo: 5 Biggest (And Most Shocking) Differences Between Book & Series

Silo has become one of the most popular sci-fi shows of the year. Based on Hugh Howey's book series Wool, the show stays mostly true to its source material, following the story of a dystopian society in a post-apocalyptic future and its attempts to discover the truth left behind by its ancestors.

The writers, led by showrunner Graham Yost in collaboration with Howey, have done a great job of making the story clearer yet more mysterious. Here's a list of the major changes in the show that reveal more about the world of Silo and its inhabitants.

5. Walker is a somewhat different character

The most unusual change is the gender of Walker, who is a man in the novels. In the series, as we know, the eccentric engineer is a woman, and it's for the better: it's Walker who serves as Jules' main mentor, becoming a mother figure to her.

4. Relics are not a big deal in the books

The whole thing with relics, artifacts from the past, many of which pre-date Silo, is a complete innovation for the show. Again, this is a great addition, as the show does a much better job of dealing with the issues of authoritarianism and invasion of personal space.

Silo's higher-ups will do anything to keep the inhabitants from dangerous knowledge.

3. Power outages were not uncommon

One major change that has not been well received by book fans is how the writers handled the power issue in Silo. According to many, the scene where the generator is repaired is one of the silliest, while the book inhabitants of Silo are used to regular blackouts.

2. Judicial doesn't play that big of a role

In the books, the IT department, led by Bernard (who has slightly different motives), is the sole power behind everything, and Judicial is only indirectly mentioned. In the show, it is a full-fledged faction of law enforcers who control the inhabitants and collude with IT.

1. The show's twist revealed much earlier

But the main change is a different pacing and presentation of the narrative. Unlike the series, which kept us wondering throughout the season what was really behind the walls of Silo, the books reveal the truth quite early on: readers learn it along with Holston when he removes his helmet.

Juliette also learns that the outside world is a scorched desert, and that the deaths of those who came out were caused by poor suit construction. Walker fixes it, allowing her to survive in the end.