Stargate Atlantis (James Swallow) Books in Order
Part ofJames Swallow Books in OrderBrowse Stargate Atlantis books by James Swallow in order, with quick summaries, Pegasus Galaxy background, and reading guidance.
Last updated: June 7, 2026
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Publication Order
2 books
Halcyon
by James Swallow
2006
The Atlantis team discovers a Pegasus world that seems to have escaped the Wraith's terror. As its secrets surface, Sheppard and his people must decide whether paradise is protection, denial, or a trap.
Nightfall
by James Swallow
2008
On Heruun, a mysterious guardian called the Aegis has kept the Wraith away for generations. When sickness spreads and team members vanish, the Atlantis expedition uncovers a secret that could doom the planet.
Series background & context
James Swallow's Stargate Atlantis stories focus on the uneasy work of exploring the Pegasus Galaxy. The Atlantis team arrives as outsiders, meets societies shaped by fear of the Wraith, and has to decide when helping means interfering.
Halcyon sends the team to a world that seems to have escaped the worst of Pegasus history. Nightfall digs into another protected society, this time with a mystery called the Aegis and a sickness that exposes deeper danger.
These are good picks if you like the TV series' off-world episodes, especially the ones where the local culture, the Ancient legacy, and the Wraith threat all collide at once.
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