Ex Nihilo is the first book published set in the universe of The Unity Chronicles.
The plot of Ex Nihilo concerns humanity's first contact with intelligent alien life, which results in a massacre, and tracks the process by which the species bands together to repel the threat. The galactic government of Unity is created and asserts its dominance over every human colony.
The highly tangible threat from the aliens' advance is not the only menace faced by humanity, however, as Unity's monopoly on power is strengthened and more insidious threats become apparent.
Ex Nihilo was published through lulu.com and made available for general release on the 22nd of April 2011. The ISBN assigned to it is 978-1-4466-1158-6.