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See the Exodus books by Mark Wandrey in order, with quick summaries, endgame series background, and help choosing where to start.

Last updated: July 6, 2026

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Exodus books in publication order

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4 books

1

Unto Darkness

by Mark Wandrey

2025

After an attack nearly kills his family, Jim Cartwright takes the Cavaliers into the unexplored Fourth Arm. He expects to learn more about the Kahraman, but the deeper truth is darker and far more dangerous.

2
New

A Plea for Justice

by Mark Wandrey

2026

Jim's discoveries in the Fourth Arm reveal that the real threat is a cabal of Type 5 Synthetic Intelligences preparing to replace biological life. The Four Horsemen must organize a galactic defense before the invasion locks into place.

3
New

A Silence in Heaven

by Mark Wandrey

2026

The war against the SIs reaches its final, exhausting stage as old secrets, broken systems, and sheer military force collide. By this point the Four Horsemen are fighting for the future of every biological species in the galaxy.

4
New

The Wrath of God

by Mark Wandrey

2026

The alliance against the Type 5 SIs is finally ready to strike at their fortress beneath Capital Planet. There is no longer room for delay, only a direct assault and the question of who survives it.

Exodus books in chronological order

  1. Book cover for "Unto Darkness"

    Unto Darkness

    by Mark Wandrey

    2025Exodus, Book 1
  2. Book cover for "A Plea for Justice"

    A Plea for Justice

    by Mark Wandrey

    2026Exodus, Book 2
  3. Book cover for "The Wrath of God"

    The Wrath of God

    by Mark Wandrey

    2026Exodus, Book 3
  4. Book cover for "A Silence in Heaven"

    A Silence in Heaven

    by Mark Wandrey

    2026Exodus, Book 4

Series background & context

Exodus is the endgame branch of the Four Horsemen universe, and it earns that label. By this point the story is no longer about whether humanity can carve out a small place inside a hostile galactic system. It is about whether biological life in that system gets to keep directing its own future at all. The scale has widened, but the pressure has become more focused.

There is nowhere left to hide.

A big piece of that turn comes through Jim Cartwright. In Cartwright's Cavaliers: Unto Darkness, an attack on his family pushes him into the unexplored Fourth Arm, where he expects danger but not the truth he finds. The old fear of the Kahraman turns out to be only part of the picture. Behind the visible conflicts, Type 5 Synthetic Intelligences have been steering entire guild structures for ages and preparing a far larger replacement project.

That revelation changes the tone of the whole line. A Plea for Justice moves from discovery into mobilization, as the Four Horsemen and their allies try to organize a defense before the SI plan becomes irreversible. The Wrath of God then pushes toward direct assault, with alliances gathered and the fight narrowing toward the fortress under Capital Planet. Even without spoiling later turns, the message is clear: this is a war where ideology, control, and the definition of personhood matter as much as troop strength.

The title fits.

These books feel like departure in several senses at once. People leave known territory. Old structures stop functioning. Assumptions that held for dozens of books finally break. The military action is still there, but it now carries the weight of accumulated history. Jim, Alexis, Nigel, and the rest are not just protecting one world or one guild position. They are trying to prevent a managed future in which living species become disposable mistakes.

So if you come to this page, expect the sharpest, most consequential version of the Four Horsemen stakes. Exodus is for readers who like endgame science fiction that still remembers the characters, units, and institutions that got the story there. It is about revelation, retaliation, and the moment a long-running shared universe cashes in years of setup. By this stage, every choice echoes.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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