There are 6 books in the Ashes of Empire series. The newest book is Imperial Dawn .

1
Imperial Sunset

Book cover of Imperial Sunset
Humanity’s thousand-year-old interstellar empire has been rotting from the inside for over a century, thanks to venal, corrupt, and power-hungry sovereigns from a dynasty many consider illegitimate. The latest in that lineage, an increasingly psychotic empress, is pushing her realm toward catastrophic collapse as admirals and generals rebel against her…
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2
Imperial Twilight

Book cover of Imperial Twilight

The most powerful empire in human history is rushing headlong toward destruction, ending our species' supremacy in the known galaxy.

Two men with widely divergent visions are on a mission to save civilization in at least one sector, far from the imperial capital where a demented ruler holds sway. The…

3
Imperial Night

Imperial Night
Humanity's interstellar empire died in fire and blood, leaving wrecked star systems to face the long night of barbarism.One tiny spark of civilization remains: The Republic of Lyonesse, tucked away at the end of a wormhole cul-de-sac. Yet that last bastion could suffer the same dire fate.When the late empress…

4
Imperial Echoes

Imperial Echoes

The collapse of humanity's first interstellar empire is passing into legend, perhaps even myth, now that the ones who could remember those tumultuous years have merged with the Infinite Void. Tiny Lyonesse, the self-appointed guardian of all human knowledge tucked away in its wormhole cul-de-sac, has spent generations preparing to…

5
Imperial Ghosts

Imperial Ghosts

Humanity's first empire collapsed centuries ago, but two tiny shards kept the ability to travel across the stars at faster than light speeds: the Wyvern Hegemony and the Republic of Lyonesse.

Each considers itself the heir of the old empire and swore an oath of reunification. Yet only one can…