Cytonic

by Brandon Sanderson

Book 3 of the Skyward series

Cytonic by Brandon Sanderson follows Spensa into the mysterious realm beyond reality, exploring cytonic powers, identity, and what it means to protect humanity.

Cytonic by Brandon Sanderson is the third book in the Skyward series, taking the story in its boldest and most experimental direction yet. While the earlier books focus on space combat, alien politics, and survival against overwhelming odds, Cytonic delves into the metaphysical foundations of the universe itself - pushing both its protagonist and readers into uncharted territory.

The novel centres once again on Spensa Nightshade, now separated from her people after the events of Starsight. In her search for answers about cytonic abilities and the true nature of the galaxy’s greatest threat, Spensa enters the Nowhere - a strange, dangerous realm that exists outside normal space and time. This surreal environment is home to powerful beings, fragments of lost minds, and echoes of long-dead civilisations, all tied together by cytonic energy.

In the Nowhere, Spensa must confront what it truly means to be cytonic. Across the galaxy, cytonics are feared, imprisoned, or destroyed, blamed for catastrophic events and labelled as existential threats. Cytonic challenges these assumptions, revealing that the truth is far more complex - and far more tragic. Through Spensa’s experiences, the novel reframes cytonic powers not as weapons, but as abilities shaped by emotion, trauma, and responsibility.

A central theme of Cytonic is self-acceptance. Removed from the structures that once defined her - pilot rankings, callsigns, and military expectations - Spensa is forced to evaluate who she is without external validation. The story examines fear as both a survival instinct and a destructive force, showing how societies use fear to justify oppression, exile, and violence.

Sanderson introduces new characters native to the Nowhere, each representing different responses to isolation and power. These relationships help Spensa understand that heroism does not always involve fighting head-on, and that protecting others sometimes means restraint rather than aggression. The novel also continues to explore artificial intelligence through M-Bot, whose evolving consciousness raises questions about autonomy, trust, and companionship.

Unlike previous entries, Cytonic is less focused on large-scale space battles and more on internal conflict and worldbuilding. Its pacing is slower and more contemplative, allowing readers to absorb the philosophical implications of the universe Sanderson has created. This shift makes the book especially rewarding for readers who enjoy character-driven science fiction and speculative concepts that challenge traditional genre boundaries.

Cytonic serves as a crucial bridge in the Skyward series, transforming Spensa from a skilled pilot into a figure who understands the deeper forces shaping the galaxy. It prepares the ground for the final conflict by redefining the nature of the enemy - and what victory might actually cost.

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