Perhaps the Stars is the fourth novel in a science fiction quartet called Terra Ignota, written by the American author Ada Palmer. It was published on November 21, 2021. It is preceded by Too Like the Lightning (2016), Seven Surrenders (2017), and The Will to Battle (2017).

Set in the year 2454, the Earth of the Terra Ignota quartet has seen several centuries of near-total peace and prosperity, but now has been engulfed by war. Perhaps the Stars presents itself as a chronicle of this war. It is narrated by self-confessed unreliable narrator Mycroft Canner, a brilliant, infamous, and paroled criminal who often serves the world's most powerful leaders.

The novel covers the entire world war. At the start, trackers are disabled and the car system is no longer available. Violence begins as each faction starts to self-identify with uniforms. Beginning with the new Anonymous in Romanova, the war solidifies between the Remakers (who want the Prince to lead the world) and the Hiveguard (who don't). A sub-war between Brillist Gordian and Utopia for the future of humanity is exposed - should they focus on improving life on Earth or exploring space? Some major figures from the previous books appear and are killed. J.E.D.D. Mason eventually unites the world, ends the war, and builds a new global structure, more balanced and hopefully able to last many more centuries.

Kirkus Reviews described Perhaps the Stars as "curiously compelling but not entirely satisfying," criticizing the characters and worldbuilding.^[1] Publishers Weekly calls the novel "spellbinding" and the ending "satisfying," calling Palmer's prose "byzantine" and "lyrical."^[2]