Books in the Purge of Babylon Series (in order)
The Purge of Babylon: A Novel of Survival
The Gates of Byzantium
The Stones of Angkor
The Walls of Lemuria
The Fields of Lemuria
The Fires of Atlantis
The Ashes of Pompeii
The Isles of Elysium
Also by Sam Sisavath
Hunter/Prey
The Shadow Operators